Dolphins are surprisingly adaptable when it comes to temperature. You don’t expect a warm-blooded mammal to live in icy waters, but check this out: orcas thrive in the Arctic and Antarctica. They have thick blubber and complex social strategies to hunt seals under ice.
On the flip side, you’ll find common dolphins basking in the tropical waters of Hawaii or the Caribbean. How do they handle the heat? They have a cooling system called countercurrent heat exchange—fancy biology speak for “they dump excess heat through their fins.”
Discover: Where Does Dolphins Live? Dive into Their Habitat!
So whether it’s a frozen fjord or a sunbaked lagoon, dolphins find a way. (Honestly, I’m jealous of their vacation style.)
