"Lemmings are known for their periodic population explosions and large-scale migrations (sometimes leading to mass deaths)."

"Puffins have brightly colored beaks during the breeding season, resembling clowns; they are skilled at diving for fish and are often called 'sea parrots' or 'clowns of the sea'."

"Slow lorises move slowly, are nocturnal, and have a toxic secretion from glands on their arms that, when mixed with saliva, is used for defense."

"Servals have long legs and large ears, are skilled jumpers for hunting small animals and birds, and are elegant hunters of the African savanna."

"The African Buffalo is one of Africa's 'Big Five' game animals, known for its fierce temperament, large herds, and wide, connected horn bases."

"Chimpanzees are one of the closest living relatives to humans, capable of making and using tools, and are highly social."

"Marmots are burrowing, social animals that hibernate in winter, known for their digging behavior and upright warning posture."

"Orangutans are arboreal, spending most of their time in trees, and their arms are much longer than their legs."

"Sea urchins are covered in spines for defense and movement and feed on algae or organic debris."

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

"Some leech species feed on blood; their saliva contains anticoagulants and anesthetics."

"Great Bustards are among the heaviest flying birds in the world; males have spectacular courtship displays during breeding season."

"Male turkeys have wattles and bright feathers; they fan their tails and gobble during courtship displays."

"Many shrimp species exhibit bioluminescence, emitting a faint glow."

"The fossa is Madagascar's largest native carnivorous mammal, a skilled climber, and a predator of lemurs."

"Herring often form huge schools and are important forage fish in marine ecosystems."

"Tuna are among the fastest swimming fish; some species are warm-blooded, with body temperatures higher than the surrounding water."

"Hagfish are primitive jawless fish that can produce copious amounts of slime for defense and feed on carrion or invertebrates."

"Kookaburras are known for their loud calls resembling human laughter and are one of Australia's iconic birds."

"Male hen harriers are greyish-white, females are brownish, they often fly low while hunting, and have a white rump patch."