Berita Hari Ini: Humans can’t see these colors


	March 27, 2026

Original photo by Philippe Donn/ Pexels

Hummingbirds can see colors that humans can't.

Colorblindness is relative. Just as we can perceive hues that dogs can't, hummingbirds can see colors that humans can't. Our eyes are sensitive to red, green, and blue light, but hummingbirds have access to a whole other spectrum that we can only imagine — and it's key to their survival.

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		Numbers Don't Lie

Species of hummingbird

330

Colors most people can see

1 million

Hours a migrating hummingbird can fly without stopping

Times a hummingbird flaps its wings per minute, depending on the species

720-5,400

Birds have hollow bones — but not for the reason you might think.

If you were already aware that birds have hollow bones, you might have also heard that it's because that makes them lighter — but that's not actually the reason for this unusual feature. Studies have shown that bird skeletons aren't any lighter than mammal skeletons of the same size. The actual reason bird bones aren't just hollow but pneumatized (read: full of space for air) is because flying requires so much oxygen that birds' lungs actually extend into their bones. As a baby bird grows, the air sacs of its lungs create a series of small hollows in its bones that give it extra space for taking in oxygen. The trait helps birds take in oxygen both while inhaling and exhaling, which helps keep them aloft even longer.

Today's edition of Interesting Facts was written by Michael Nordine and edited by Bess Lovejoy.