This shark can hold its breath to stay warm in the deep, study finds

This shark can hold its breath to stay warm in the deep, study finds

The scalloped hammerhead shark is most comfortable in warm water, but hunts by diving deep into the cold depths to hunt squid and other prey. A new study from the Hawai’i Institute of Marine Biology has found that the sharks stay warm by closing their gills in their dives to prevent heat loss.

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