"Rhinoceros horns are made of keratin, the same protein found in human fingernails, not bone."

"Takins are stocky, ox-like animals with short, backward-curving horns, adapted to high mountain life, and are a Class I protected animal in China."

"Sloth bears have protruding snouts and flexible lips, primarily feed on ants, termites, and fruit, and carry their young on their backs."

"Scorpions are nocturnal predators; the stinger on their tail is used for predation and self-defense; some species glow under UV light."

"Saiga antelopes have a large, inflatable, downward-pointing nose that filters dust and warms air; they are critically endangered."

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

"Jaguars are the largest cat species in the Americas, with powerful jaws capable of piercing turtle shells and crocodile skin."

"Male lyrebirds have tail feathers shaped like a lyre and are skilled mimics of various sounds, including other bird calls and environmental noises."

"Alpacas are known for their soft, high-quality wool, cute appearance, and are often called 'grass mud horse' (a Chinese internet meme)."

"Male kudus have long, spiral-shaped horns, which are very spectacular; they are large antelopes."

"Male crickets chirp by rubbing their forewings together to attract females; some species are kept as pets or used for cricket fighting."

"Electric eels can generate strong electric currents up to several hundred volts for predation and defense; they are famous electric fish."

"Impalas are known for their graceful leaping ability; males have long, lyre-shaped horns."

"Dholes are social canids, skilled cooperative hunters, with diverse vocalizations, and are important forest predators."

"Armadillos are covered in a bony shell; some species can roll into a ball when threatened."

"Howler monkeys are known for their loud, booming howls, audible for several kilometers, and are among the largest New World monkeys."

"When threatened, some sea cucumber species expel their internal organs to confuse predators and can later regenerate them."

"Monitor lizards are large predatory lizards (Komodo dragon is one type), with forked tongues like snakes and a keen sense of smell."

"Guinea fowl have feathers with uniform white spots, like pearls; they are lively and have noisy calls."

"Many deep-sea anglerfish females have a bioluminescent lure on their heads to attract prey; males are tiny and parasitic on females."