The oldest sponge

The recently discovered, millimeter-long fossilized sponge (pictured here) has helped scientists identify when the sponge lineage diverged from that of more familiar animals.  This sponge lived 600 million years ago, tens of millions of years before sponges were thought to have first appeared in the historical record.

By | 2015-12-28T10:49:41-05:00 December 28th, 2015|Categories: Archaeology, Current Events|0 Comments

About the Author:

Jacob Allgeier
I am an ecologist with broad interests in how human-induced changes alter how ecosystems function and the services that they provide. A central focus of my research is understanding how changes in biodiversity affect the flow of nutrients and energy in ecosystems. Most of this research takes place in tropical coastal ecosystems such as mangroves, seagrass beds, and coral reefs. I am an assistant professor at the University of Michigan, Ecology and Evolutionary Biology.

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