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Two brazen lion brothers are about to threaten the security of a once peaceful pride.

Plagues of giant jellyfish are floating towards Japan.

Billions of Sumo-sized gelatinous creatures are wreaking havoc on Japan's coastal towns and fishing industries.

Casey is trying to measure the ramming power of a big horn sheep!

Casey finds two tangled moose antlers that got stuck together during a fight.

Casey and the local critter catcher go to trap a crocodile in a local swimming pool.

The Cassowary is an aggressive prehistoric large bird that can get defensive over his territory.

Zeb is walking on the bottom of the river in the hopes of finding sturgeon eggs.

Zeb and some Alaskan locals are taking shots of salmon flavored vodka!

Zeb struggles to catch a juvenile whipray.

Scientists and engineers have gathered to build the world's first supercat, combining the best of all wildcat species.

While creating our fictional super cat, scientists look at cats both big and small to find the best jumper.

Sadly, only 1 in 17 gator hatchlings survive the harsh trials of the swamplands.

Researchers have a method of catching plump Emperor Penguin chicks in order to compile the year's data on the health of the...

Emperor penguins encounter “Aliens” while making their way to the fishing grounds.