3 ms·
Dolphins sleep with one hemisphere of the brain at a time. Sharks never stop swimming because it’s the only way they can move water over their gills.
by jiggawatts 3mo ago
Dolphins sleep with one hemisphere of the brain at a time.
Sharks never stop swimming because it’s the only way they can move water over their gills.
- lemonberry 3mo agoThis is only true of some sharks. And of the ones that it is true there's examples of them stopping in places where the current runs enough water through their gills to breath.