Chris and Martin meet an adorable wolf cub. Chris and Martin meet an adorable wolf cub. Wild Kratts is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, ...

Call of the wild: Wolf pups howl in adorable video Wolf puppies at the Great Plains Zoo in Sioux Falls, South Dakota, are learning to howl. Check out these young pups as they find their voices!

This time of year, the sound of a wolf howl piercing the night can really send shivers up your spine. But that call of the wild isn’t meant to scare you; it’s actually a message to other wolves.

A litter of weeks-old red wolf pups learned to howl together and it was all captured on video. The Great Plains Zoo in Sioux Falls, South Dakota, welcomed six red wolf pups on May 4. The litter ...