Beyond Expelling Organs at Predators: What Else Are Sea Cucumbers Hiding?
Featured image caption: Sea cucumbers are echinoderms that live on the ocean floor worldwide. Some species are also edible and
Read moreFeatured image caption: Sea cucumbers are echinoderms that live on the ocean floor worldwide. Some species are also edible and
Read moreAs you swim through a coral reef, you see parrot fish, clams and other colorful aquatic creatures swimming elegantly and going about their lives. While you, with your snorkel, are confined to the surface of the water and the occasional dive for as long and as deep as you can hold your breath, the fish “breathe” easily with their gills (or lungs in the cases of some evolutionarily interesting fish). But do they breathe that easily? Living in and getting oxygen from a high-pressure aquatic environment is difficult and metabolically demanding, and some fish have found special ways to make it easier.
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