The alternative text for this image may have been generated using AI. We note that according to our mitochondrial data set, the cephalochordates and vertebrates form a highly supported monophyletic ...
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The mystery of chordate origins has endured for more than 150 years. Shortly after Darwin's On the Origin of Species, acorn worms were discovered to have chordate-like pharyngeal gill slits 1,2 and to ...
The Middle Cambrian chordate known as Pikaia gracilens was once thought to be humanity’s earliest known ancestor, and the earliest known member of the phylum Chordata. Now, a new study flips this ...
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