The dwarf lantern shark is the smallest shark in the world, reaching a maximum known length of 20 cm (8 in). - It belongs to the dogfish shark family Etmopteridae and is one of the few bioluminescent sharks, producing light from organs called photophores on […]
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Nudibranchs leave a trail in their wake, just like the land snails we are familiar with. This trail is laden with chemicals and is quite expressive. It can assist a potential partner identify it or warn other nudibranchs of risks in the area! Nudibranchs can discriminate […]
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An octopus has three hearts. One pumps blood through its organs; the two others pump blood through its gills, according to the World Animal Foundation. Octopus blood is blue because it has a copper-based protein called hemocyanin. Octopuses have short life spans. Some species only […]
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