Why some hammerhead sharks seem to 'hold their breath' during dives

Diving with great hammerhead sharks - Oceanographic

Ancient fish may have set stage for jaws

The flowers of the yellow thistle stay cool even as the air scorches around them - World of Warmth

Hammerhead sharks hold their breath to stay warm in cold ocean depths - Interesting Engineering

Basking sharks head south for winter

Trupti Sheth (@tru_sheth) / X

Household stuff - World of Warmth

Images Mammals - World of Warmth

How Sharks Holding Their Breath Helps Keep Them Warm