this post was submitted on 11 Apr 2025
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Science Memes

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Tigers ๐Ÿ… ๐Ÿฏ (lemmynsfw.com)
submitted 2 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 104 points 2 months ago* (last edited 2 months ago) (2 children)

Our primary outer protein is basically keratin, which can be tinted orange(carotene), beige (collagen) or brown/black (melanin).

The green pigment is a byproduct of bilirubin catabolism, which we don't have because we use a different pathway to metabolize and recycle it.

[โ€“] [email protected] 48 points 2 months ago (1 children)

Found the tiger.

[โ€“] [email protected] 14 points 2 months ago (1 children)

Good eyesight!

[โ€“] [email protected] 4 points 2 months ago

Not particularly, just doesn't have hooves.

[โ€“] [email protected] 4 points 2 months ago (1 children)

the green pigment? What green pigment?

[โ€“] [email protected] 28 points 2 months ago

For reptiles and other stuff, we don't have those.