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tunicates

Megasiphon thylakos
Photo: Megasiphon thylakos holotype, after Fig. 2 in Nanglu et al. 2023, fair use.

Fossil Friday: Fossil Tunicate Confirms Cambrian Explosion

Almost on a monthly basis new fossil evidence corroborates the abruptness of the Cambrian Explosion as a genuine "Big Bang" of life. Read More ›
Rhizomnium_punctatum_(k,_144543-474730)_0031
Photo: Plant cells, by Hermann Schachner, CC0, via Wikimedia Commons.

Cellulose Doesn’t Just Happen

The most abundant biopolymer on Earth requires a host of machines, genes, proteins, and accessories.  Read More ›
Salp
Photo credit: Lars Plougmann from London, United Kingdom, CC BY-SA 2.0 <https://creativecommons.org/licenses/by-sa/2.0>, via Wikimedia Commons.

Meet the Ghostly Organisms that Rescue the Planet

A man was paddleboarding last month when he came across a mysterious creature three miles off the shoreline of California. Read More ›
Rhenocystis
Photo: Rhenocystis latipendunculata, (c) Christel Schuhmacher, Hunsrück Museum Simmern, CC-BY-NC-SA 4.0.

Fossil Friday: Rhenocystis and the Controversial Calcichordate Hypothesis

It looks a bit like a tadpole with body and tail, and this indeed points towards one of the great scientific controversies of the 20th century. Read More ›
Hoilungia-hongkongensis

Placozoa: An Evolutionary Leftover? 

Simple, small, and worldwide in distribution, the placozoa don’t fit any clear evolutionary picture. Read More ›

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