# Blood chemistry reveals why some animals bleed blue, green or purple

- Source: Phys.org - latest science and technology news stories
- Published: 2026-11-02T19:40:06+00:00
- Category: Science
- Original: https://phys.org/news/2026-11-blood-chemistry-reveals-animals-blue.html
- Canonical: https://groundlevelnews.com/story/blood-chemistry-reveals-why-some-animals-bleed-blue-green-or-purple-432974/

Whether it's gushing from a bumped nose or pooling atop a pricked finger, our blood is some hue of red. But red-bloodedness isn't universal in the animal kingdom. In some creatures, the vital fluid is purple; in others it's yellow, green or even white.

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