Moon jellyfish's secret swimming powers earn it extra mileage

October 9, 2013 1:37 AM

29 0

Moon jellyfish's secret swimming powers earn it extra mileage

In a fish-eat-fish ocean filled with sharks and other fierce swimmers, how has the delicate jellyfish survived – and thrived – through hundreds of millions of years of evolutionary culling? A team of biologists and engineers says it has discovered the "jelly’s" secret: They're incredibly efficient swimmers.

Jellyfish don't look like they're built for speed. Less than 1% of their body mass is devoted to muscle, compared with more than 50% in fish. But they’re competent predators — and perhaps even too successful. In many parts of the globe, they spread into ecosystems so thoroughly that they’re consider...

Read more

To category page

Loading...