"Elephants are the largest land animals; their tusks are actually elongated incisor teeth."

"Water buffalo enjoy wallowing in water to cool off and avoid insects; they are important draft and dairy animals."

"Iguanas are large herbivorous lizards; some species are skilled swimmers and have strong tails."

"Vicuña wool is extremely fine and valuable; they were once endangered, now protected, and are wild relatives of the alpaca."

"Hoopoes have a prominent crest of feathers on their heads, usually folded, but fanned out when excited, and a long, slender, curved beak."

"The Vaquita is the world's most endangered marine mammal, small in size, with dark rings around its eyes, and extremely rare to see."

"Nightjars are nocturnal birds with camouflaged plumage, wide mouths, feed on flying insects, and have distinctive calls."

"When threatened, cobras spread the ribs in their neck, forming their characteristic 'hood'."

"Voles are small herbivorous rodents, numerous in species, and are important food for many raptors and carnivores."

"The Kiwi is New Zealand's national bird, flightless, with a long beak and whiskers, and nostrils at the tip of its beak."

"Indus River dolphins have very poor vision, almost blind, relying on echolocation to navigate and hunt in murky river waters, often swimming on their sides."

"Clams are filter feeders, drawing in water through siphons to filter out plankton and organic debris."

"Male peacocks (peafowl) have magnificent trains (actually upper tail coverts), which they fan out during courtship displays ('peacock's display')."

"Pigs are considered quite intelligent animals, with an IQ sometimes thought to be higher than dogs."

"Male deer grow and shed antlers annually; antlers are bony structures."

"Hellbenders are one of North America's largest amphibians, fully aquatic, with wrinkled skin to increase surface area for respiration."

"Giraffes are the world's tallest mammals; newborn giraffes are about 1.8 meters tall."

"Lice are small, wingless ectoparasitic insects with piercing-sucking mouthparts, feeding on blood or skin debris."

"Ants are highly social insects, living in organized colonies (nests) with clear division of labor."

"Anacondas are among the world's heaviest and largest snakes, excellent swimmers, non-venomous but powerful constrictors."