Joel Sartore Joel Sartore

National Geographic Photographer and Speaker

Keyword: Captive breeding

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

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A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

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ESA002-00246

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

Photo

ESA002-00248

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

Photo

ESA002-00249

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

Photo

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A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

Photo

ESA002-00244

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

Photo

ESA002-00245

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

Photo

ESA002-00241

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney's Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney's Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

Photo

ESA002-00242

A federally endangered Key Largo wood rat (Neotoma floridana smalli) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

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Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00095

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00096

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00097

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00098

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00099

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

A Miami blue butterfly (Cyclargus thomasi bethunebakeri) in larva form. This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00100

A Miami blue butterfly (Cyclargus thomasi bethunebakeri) in larva form. This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00088

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00089

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00090

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00091

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00092

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00093

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo

INS007-00087

Miami blue butterfly (Cyclargus thomasi bethunebakeri). This species is being captive bred at the McGuire Center at the Univ. of Florida. Thousands have been released into the wild in South Florida over the past three years. So far, results are indeterminate. Fewer than 250 exist in the wild, making it one of the rarest butterflies in North America.

Photo: A scientist holds a captive frog at the breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito's Catholic University, Ecuador.

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A scientist holds a captive frog at the breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito’s Catholic University, Ecuador.

Photo: Extinct species of amphibians on display at Catholic University, Ecuador.

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Extinct species of amphibians on display at Catholic University, Ecuador.

Photo: Extinct species of amphibians on display at Catholic University, Ecuador.

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Extinct species of amphibians on display at Catholic University, Ecuador.

Photo: Extinct species of amphibians on display at Catholic University, Ecuador.

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Extinct species of amphibians on display at Catholic University, Ecuador.

Photo: A scientist holds a captive frog at the breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito's Catholic University, Ecuador.

Photo

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A scientist holds a captive frog at the breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito’s Catholic University, Ecuador.

Photo: A scientist examines and feeds captive frogs at the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito's Catholic University, Ecuador.

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A scientist examines and feeds captive frogs at the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito’s Catholic University, Ecuador.

An endangered marsupial frog (Gastrotheca litonedis) in the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito's Catholic University, Ecuador.

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An endangered marsupial frog (Gastrotheca litonedis) in the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito’s Catholic University, Ecuador.

Photo: An extinct frog species specimen at the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito's Catholic University, Ecuador.

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An extinct frog species specimen at the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito’s Catholic University, Ecuador.

Photo: Jars of extinct amphibian species from the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito's Catholic University, Ecuador.

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Jars of extinct amphibian species from the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito’s Catholic University, Ecuador.

Photo: Jars of extinct amphibian species from the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito's Catholic University, Ecuador.

Photo

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Jars of extinct amphibian species from the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito’s Catholic University, Ecuador.

Photo: Jars of extinct amphibian species from the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito's Catholic University, Ecuador.

Photo

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Jars of extinct amphibian species from the captive breeding facility known as Balsa de los Sapos, or Amphibian Ark, at Quito’s Catholic University, Ecuador.

Photo: Extinct species of amphibians on display at Catholic University, Ecuador.

Photo

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Extinct species of amphibians on display at Catholic University, Ecuador.

Photo: Extinct species of amphibians on display at Catholic University, Ecuador.

Photo

SCE048-00083

Extinct species of amphibians on display at Catholic University, Ecuador.

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