Only gorillas & these other primates walk on their knuckles
Sapsuckers are a type of these birds that extract insects from trees by strokes of their bills
Biologist Johannes Schmidt located the Sargasso Sea breeding area of this "elongated" freshwater fish
These small, slender mammals often kept as pets were domesticated from the European polecat
Considered among the first animals used in husbandry, they're divided into types by wool texture
This bearded barnyard animal is the joke of many butts
Animal most associated with the man seen here: (Harlan Sanders)
The height of these barnyard animals is measured in hands
Around the world this animal sounds different: "K' ok' iyo" in Korean & "Goh-geh-goh-goh" in Chinese
In a matter of minutes, a school of these South American fish can reduce a large mammal to a skeleton