While the mention of blood might conjure up images of a crimson red liquid, it turns out the animal world isn’t keen to stick to just the one color ( or any color at all ) when it comes to this particular body fluid. In fact, scuttling about the forests of New Guinea and the Solomon Islands is a group of skinks with blood so green, it could rival the Hulk’s. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

The skinks in question are the Prasinohaema , a genus of lizards that live up in the trees, snacking on insects. From the outside, they look much like you’d expect a skink to look – long and scaly, with little limbs. But inside, they’re the only amniotes that have green blood, and scientists still don’t really know why.

Well, t

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