A team of scientists digging up some of the Earth’s oldest rocks has uncovered new chemical evidence that Earth’s first animals were likely ancestors of the modern sea sponge. The discovery relies on ...
A rare chemical indicator suggests sponges may have arrived as the first animals on Earth. A sterol core is primarily composed of four fused carbon rings, along with carbon side chains and other ...
Experts think they may have uncovered what the first ever animal on Earth looked like after ancient chemical signals were found. For as long as scientists have understood evolution, the debate over ...
Fossil evidence and sponge skeletons Living sponges have skeletons composed of millions of microscopic glass-like needles called spicules. These spicules also have an extremely good fossil record, ...
Dr. Tanja Stratmann’s project, titled “Nitrogen Cycling in Modern Sponges with Clues About Their Role in Past Oceans” (SPYCLING for short), focuses on marine sponges as representatives of the oldest ...
A team of MIT geochemists has unearthed new evidence in very old rocks suggesting that some of the first animals on Earth were likely ancestors of the modern sea sponge. In a study appearing today in ...
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