“Jellyfish have stinging cells called nematocytes,” explains Dr Ronald Jenner, our Principal Researcher in venom evolution. “They have thousands of these along their tentacles. The stinging cells ...

Most jellyfish are more bothersome than threatening ... Each of those cells contains a tiny capsule that can fire microscopic ...

In the lab, when upside-down jellyfish were agitated or eating, they released clouds of mucus. Microscopic views showed that the mucus was filled with what Ames calls a “spider web of things ...

Jellyfish - Some species of jellyfish can survive without oxygen for extended periods. Naked mole rats - These rodents can survive in low-oxygen tunnels by slowing their metabolism. Tardigrades - Also ...