Nature’s balance depends on a web of predatory animals that have teeth, claws, speed and other adaptations for catching their food. This balance also hinges on prey animals with clever defenses to avoid becoming food.
The Baikal seal is the world's only seal species that lives exclusively in fresh water, specifically in Asia's Lake Baikal.
Different kinds of aquatic (water-dwelling) animals use similar tricks of the survival trade. This section demonstrates this point with a look an aquatic bird and a water-loving mammal.
Koalas sleep between 18 and 22 hours per day.
From deadly venoms to insect repellants to stink bombs, animals produce and use powerful chemicals to attack food and repel danger.
In the wild world of nature, survival often depends on sitting in one place and looking like something you’re not. It’s all about adaptations that fool the eye.
The harpy eagle, one of the most powerful birds of prey, can grab monkeys and sloths off trees using its sharp talons.
Tusks, spines, and even sharp toenails are just some of the adaptations animals use, to defend themselves from predators.
The platypus has a venomous spur on each of its hind ankles. It is one of only three known egg-laying mammals. (The other two, called echidnas, look like small spiny anteaters.)
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