Queens Zoo keepers head out for a midnight study to find out what makes their zoo such a hot bed for bat activity.

Senior keeper Kris Theis shows us how the zoo prepares bloodsiciles for tigers using animal blood.

Join the zoo's animal commissary keepers on their night shift as they show how they manage and deliver thousands of pounds of food and feed needed for daily operation.

Officials from the Bronx Zoo and Wildlife Conservation Society joined thousands of others to protest the ivory trade by crushing more than two tons of goods made out of elephant tusks.

Watch the remarkable story of three adorable kitten litters coming of age. From first steps to daring kitty pounces, the first eights weeks of their lives will be an epic journey for these adventurous Abyssinians, brash Bengals and perfect Persians.

Follow the birth and first months of three distinct puppy litters, from the puppies’ perspectives.

Three adorable litters of puppies come of age. The first few months of these Pugs, Mini-Australian Shepherds and Rottweillers' lives will be filled with adventure, including an introduction to the agility course and a lesson in duck-herding!

For these Savannahs, Siberians and Shorthairs, the first few months are an epic adventure. Whether in a house filled with guinea pigs, turtles and mice; or running off to explore strange new realms, these kittens keep their parents on their paws.

Three litters of kittens grow from helpless furballs to rambunctious young kittens in this epic story. Hairless Sphynx who redefine 'cute', agile Burmese exploring new heights, tiny Ragdolls befriending German Shepherds - this is a new level of cute!

Three litters of kittens pounce through the first few months of their lives. Glamorous American Curl kittens prepare for life on the catwalk, a set of Tonkinese run circles around mom, and a Maine Coon tries to show his siblings who's boss.

Three litters of puppies go from cute to cuter during the first few months of their lives. A trio of Rhodesian Ridgebacks run circles around mom Peanut, fluffy Chow Chows puppies bring plenty of attitude, and Havanese Lulu has her paws full with pups

Witness the coming-of-age story of three very special litters. Three adorable pups keep their Jack Russell mom busy. A Portuguese Water Dog discovers her litter may not be too keen on water. And, a Bullmastiff's four pups just keep growing.

Six fluffy Coton de Tulear puppies and a baby goat are the newest additions to a picturesque farmhouse. A mischievous German Shepherd's mom struggles to keep him focused in the classroom. A French Bulldog plays referee to her tussling twins.

Oreo, a tiny tuxedo kitten meets a similarly attired companion: Nellie the Skunk. Sputnik leads his Russian Blue siblings on a grand adventure. And, Ocicat Freckles tries to keep control of her five mini jungle cats.

Nanook, a shy Chinook, is the only boy in a litter of four, training to be a sled dog. Rocky, the Labradoodle, and his brother Stanley grow up poolside. And Rollo and Pickles are wiener dogs who aspire to be athletes like their champion hot dog mom.

A shy Cavalier King Charles Spaniel is coaxed out of her shell by her aunt. Then, everyone wants to be top dog in the Alaskan Malamute home. Finally, three dalmatians grow into their spots as they show off their skills at the local fire station.