#21 Have you ever noticed the whiskers on the backs of a cat's legs? They’re called carpal whiskers:

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#22 This is what an ant's head appears like when viewed extremely closely:

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#23 Frogs can be incredibly, incredibly small:

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#24 This is a photograph of one of the last Tasmanian tigers, a species that vanished in 1936:

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#25 And here is one of the only two Northern white rhinoceroses still alive on the planet:

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#26 This illustrates the size of a newborn kangaroo:

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#27 This is a comparison of a shark's brain and a dolphin's brain:

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#28 This shows a gorilla receiving dental care:

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#29 Gorillas... they're just like us!

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#30 And here is a comparison of a hummingbird egg and an ostrich egg:

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#31 This is a vaquita, one of the rarest species in the world:

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#32 This shows the interior of a wasp nest:

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#33 This is what a python's skeleton looks like:

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#34 This is a Quetzalcoatlus, the largest flying creature ever documented, next to a human:

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#35 This image depicts several fossilized dinosaur eggs:

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#36 Deer lose their antlers annually. This is what a deer without antlers looks like:

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#37 A beluga whale's head consists mainly of fat tissue...

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#38 Here is a baby pigeon:

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#39 Emu eggs are truly stunning:

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#40 Both seals and sea lions possess nails:

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