Since the days of Charles Darwin, researchers are interested in reconstructing the "Tree of Life", and in understanding the development of animal and plant species during their evolutionary history.
Hosted on MSN
A 550-million-year-old sponge fossil may have lacked a skeleton entirely — rewriting how the first animals evolved
When paleontologists picture the earliest animals, they tend to imagine something with at least a rudimentary skeleton: a lattice of glassy needles, perhaps, or a mesh of calcium carbonate. But a ...
Ask someone to think of an animal, and chances are they’ll come up with one of our relatives among the mammals. A few people might go further afield and mention other vertebrates, like birds and fish.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results