Howler monkeys, sperm whales, wolves and lions make lots of noise.

Jack's wife, Suzi, encounters dolphins, elephants, cheetahs and poison dart frogs.

Sea turtles, whale sharks and wading birds.

Gibbons, horses, sloths and a pigeon get a second chance at survival.

A disappearing civet; a missing elephant; decoding bats.

Mellow manatees, koalas and giant Galapagos tortoises.

Jackals, sharks and leopards survive on remains hunters leave behind.

Elephants and manatees; rhinos and tapirs; giraffes and okapis.

King cobra; anaconda; tortoise; chameleon.

Six nerve-wracking adventures not for the faint of heart include diving deep underwater in a submarine, trekking into mandrill country and coming face-to-face with a mountain lion.

The color red is important to some animals' survival.

Tails can be dangerous, powerful and critical for high-speed navigation; dolphins; scorpions; crocodiles; lemurs.

Cheetahs; rhinos; manatees; kangaroos; a time-traveling tour through natural history.

Moose; cougars; alligators; an underwater adventure in Hawaii.

How water impacts the lives of elephants, hippoes, caimans and giraffes.

Tigers; orangutans; monkeys; high-flying animals.

Masai cattle; elephants and mahouts; cowboys of South America.

Pandas; marsupials; flamingoes.

Stealthy hunters with night vision; bats; rats; vipers.

Horses; kangaroos; cheetahs; falcons.

Baboons crossing the road; dogs getting vaccinated; orphaned animals getting nursed back to health.

Zoologist and animal trainer Dave Salmoni has traveled around the world to study animals and their ecosystems, often exploring the delicate balance between wildlife and civilization. In this series, Salmoni is put to the ultimate test as he lives beside some of the world's fiercest creatures, visiting remote islands to investigate how beastly inhabitants survive in harsh conditions. For answers, Salmoni must get closer to the animals than most people would be willing to. Among his journeys are treks to a South Pacific island that is home to a large concentration of sharks, and an island off the coast of Panama that has a dark secret.

Jeff Corwin explores the underwater world and talks about the importance of conservation.