Biology
The Neural Basis of Echolocation in Dolphins and Bats
Quick fact
Bats and dolphins independently evolved echolocation, yet they use opposite neural strategies: bats rely on a large auditory cortex with specialized frequency maps, while dolphins compute precise timing information in small auditory nuclei, achieving similar imaging performance with radically different brain wiring.
Why this is interesting
They live in different worlds—one flies through dark caves, the other swims through murky oceans—but both navigate and hunt by emitting sounds and listening for echoes. How do two such different mammals achieve the same extraordinary feat?