Contains facts about polar bears and grizzly bears, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about lions and tigers, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about the tarantula and the scorpion, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about killer whales and great white sharks, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about alligators and pythons, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about rhinoceroses and hippopotamuses, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about Tasmanian devils and wolverines, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about komodo dragon and king cobra, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about whales and giant squid, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about lions and tigers, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about hammerhead sharks and bull sharks, comparing such aspects as their sizes, brain structure, and abilities.

Contains facts about polar bears and grizzly bears, comparing such aspects as their sizes, brain structure, and abilities.