Short Wave

Are Crabs The Final Form?

Sep 18, 2024
Javier Luque, a senior research associate at the University of Cambridge and curator of crustaceans, dives into the strange phenomenon of carcinization—where various species evolve into crab-like forms. He discusses the evolutionary advantages of being crabby, the first crabs in history, and even the quirks of animals un-evolving from that shape. The conversation also touches on the humorous side of this meme-worthy concept, pondering whether humans might one day join the ranks of crabs. It's a fascinating blend of science and light-hearted storytelling!
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ANECDOTE

Javi's Pet Crab

  • Javier Luque, a crab expert, once had a pet fiddler crab named Juanchito.
  • He recommends everyone have a pet crab at some point.
INSIGHT

Carcinization vs. Decarcinization

  • Carcinization, the process of becoming crab-like, has occurred at least five times in evolution.
  • Decarcinization, losing crab-like features, has happened even more.
INSIGHT

Crab Diversity and Habitats

  • There are about 7,500 living and 3,500 fossil crab species.
  • Crabs thrive in diverse environments globally, from ocean depths to mountains.
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