Scientists from Moss Landing-based MBARI, UC Santa Cruz, UC Berkeley and the San Francisco-based Chan Zuckerberg Initiative discovered that patterns in sponge chromosomes matched those found in vir…
We still don’t know what the world’s first animal looked like, but scientists say it arose roughly 700 million years ago from a soup of single-celled organisms floating in the ocean. The multi-celled creature thrived, multiplied and evolved, at some point splitting into two distinct species.
The scientific consensus siding with the gelatinous deep-sea creature — over the other leading contender, the simple sponge — gelled over the summer after a team of Northern California researchers led by Darrin Schultz, a 30-year-old biologist at the Monterey Bay Aquarium Research Institute, provided the.
Composed of scientists from Moss Landing-based MBARI, UC Santa Cruz, UC Berkeley and the San Francisco-based Chan Zuckerberg Initiative, the team discovered that patterns in sponge chromosomes matched those found in virtually all other animals’ chromosomes. But the patterns in comb jelly chromosomes were distinctly different.
Comb jellies, on the other hand, are complex, sporting eight rows of hair-like cilia that help them move through the ocean. The cilia reflect light, so the animals appear to pulse with electricity like drifting deep-sea marquees. And unlike sponges, comb jellies have nerve and muscle cells.
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