Basic sheet Octopus
Easy Basic Octopus coloring page for kids. Octopus coloring page best quality picture to print or download. Basic sheet Octopus coloring page. Octopus Blood Is Blue Colored. To survive in the oceans, octopuses evolved a copper-based blood instead of iron-based blood.
This copper-based blood, called hemocyanin, which turns blood blue, is more beneficial in transporting oxygen than hemoglobin when the water temperature and oxygen are low. However, this system makes them more susceptible to acidic changes. If the pH of the water drops, octopuses cannot circulate enough oxygen. That's why, at this time of climate change, researchers are very concerned about what will happen to animals as a result of ocean acidification.
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