in a row images - Joel Sartore

Photo

BIR036-00145

Humboldt or Peruvian penguins (Spheniscus humboldti) on a rocky shore.

Photo

BIR064-00240

Two male saffron finches (Sicalis flaveola brasiliensis) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil.

Photo

BIR064-00239

Saffron finches (Sicalis flaveola brasiliensis) at the Membeca Lagos Farm, near Rio de Janeiro, Brazil. The female is more brown, the males more brilliant yellow.

Photo

ANI069-00031

Three juvenile common opossum (Didelphis marsupialis) at Cetas-IBAMA, a wildlife rehab center in Manaus, Brazil. This is administered by IBAMA, the government wildlife agency of Brazil.

Photo

ANI064-00105

Gelada baboons (Theropithecus gelada) at Parco Natura Viva in Bussolengo, Italy.

Photo

ANI064-00108

Gelada baboons (Theropithecus gelada) at Parco Natura Viva in Bussolengo, Italy.

Picture of a Virginia opossum (Didelphis virginiana virginiana) with babies at the Nebraska Wildlife Rehab.

Photo

ANI051-00206

A Virginia opossum (Didelphis virginiana virginiana) with babies at the Nebraska Wildlife Rehab.

Photo

PEO003-00445

Elementary age boys and girls on horses.

Photo

PEO020-00247

Three young women run through smoke bomb fire crackers in Bennet, Nebraska.

Photo

PEO020-00245

Three young women light fire crackers in Bennet, Nebraska.

Photo

SPO008-00062

Rodeo queens on horses stand at the rodeo entrance gates.

Photo

BIR050-00070

A mated pair of spot-billed toucanets (Selenidera maculirostris) at the Dallas World Aquarium. The male is mostly black, with more brown in the female.

Photo

SCE054-00106

Lions meet the robocar in Queen Elizabeth National Park.

Picture of common dwarf mongooses (Helogale parvula) at the Omaha Henry Doorly Zoo

Photo

ANI035-00009

Common dwarf mongooses (Helogale parvula) at the Omaha Henry Doorly Zoo.

Picture of a row of critically endangered ploughshare tortoises (Astrochelys yniphora) at Zoo Atlanta.

Photo

ANI080-00082

A row of critically endangered ploughshare tortoises (Astrochelys yniphora) at Zoo Atlanta. These animals were confiscated after being stolen. They are valued at about $10,000 each.

Photo

ESA002-00340

Aquariums containing many rare and endangered fish species at Conservation Fisheries, a native stream fish breeding center.

Photo

ESA002-00270

Flattened musk turtles (Sternotherus depressus) (IUCN: Vulnerable, US: Threatened) at the Tennessee Aquarium, Chattanooga, Tennessee.

Photo

The federally endangered Iowa Pleistocene Snail (Discus macclintocki). This is a relict from the last ice age, some 400,000 years ago. It lives in cold air vents on 37 different hillsides in Iowa (and one in Illinois) and survives only in the cold air that blows past underground ice and out of the cracks in limestone cliffs.