science Phys Org 2026-11-02

The Science Behind Why Some Animals Have Colored Blood

Animal biology explains why some species possess non-red blood, which can appear yellow, green, purple, or even white depending on chemistry.

Support Your Local Toad

The Pesky Toad is free and ad-light. If you find it useful, toss a few pesos in the tip jar to help keep the servers running and the satire flowing.

$

MXN · Minimum $10