3D mouth of an ancient jawless fish suggests they were filter-feeders, not scavengers or hunters
which are some of the earliest vertebrates (animals with backbones) in which the mouth is fossilized. Their aim was to answer ...
National Geographic news9mon
Cambrian Period
Among them were the chordates, to which vertebrates (animals with backbones) such as humans belong. What sparked this biological bonanza isn't clear. It may be that oxygen in the atmosphere ...
BBC4y
What is a vertebrate?
If Blob had been born with a spine, or backbone, he would have been a vertebrate. If we give Blob some legs and a head then he can start to move about. There are lots of vertebrates in the animal ...
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Researchers explore the hagfish genome, reconstruct the early genomic history of vertebrates
In looking at the brown hagfish, researchers were able to resolve new details of genome duplication events, predating the origin of modern vertebrates (animals with a backbone or spinal column ...