Tongass National Forest's John Neary explains how massive Mendenhall Glacier really is.

Mendenhall Glacier is constantly moving, flowing downhill. The real beauty lies beneath in the form of ice caves.

Dr. Joy Reidenberg talks about about orcas in Alaska.

Bald Eagles live up to 25 years, and they gain their iconic white crown by age 5.

Walruses are highly social creatures, and can form groups of up to 10,000.

Adult male bears are called boars, females are called sows, and youngsters are called cubs.

Broadcasting live over three nights with hosts Chris Kratt and Martin Kratt, PBS, in partnership with the BBC, turns the cameras on a must-see natural spectacle as thousands of the world’s wildest animals gather to take part in Alaska’s amazing summer feast. Premieres July 23 @ 8 ET/PT

Studying these orca for over 15 years, Dan Olsen has become familiar with each pod and even recognises individuals just from their calls.

As the spring temperatures warm up, Mendenhall glacier in Alaska starts to melt, creating stunning patterns beneath the ice.

Salmon migrating in-land in Alaska trigger one of the greatest feasts on the planet.

A black bear teaches her cubs the highway code by showing them how to cross a road safely.

Pesky porcupines are nibbling their way through Wild Alaska Live's production village!

Humpback whales display remarkable intelligence as they hunt as a group. One blows a net of bubbles, fencing in their prey, before the group lunge feed together.