Life Below
A Shark’s Gills and a Dolphin’s Blowhole Reveal Different Ways to Breathe
Compare a dolphin’s air breathing with a shark’s gills, and keep a surface sighting separate from conclusions about an unseen animal.
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Marine animals
Life Below
A Sponge Can Be an Animal Without Looking Like One in Motion
A branching shape attached to the seabed may look plant-like in a photograph. Appearance alone is a poor guide to the way an organism lives, and marine…