Two individual comb jellies can fuse into a single organism, providing an incredible feat of regeneration rarely seen in the animal world.
Evolution
Extinct walrus-like species identified from old mandibles
The extinct species, named Ontocetus posti, lived nearly two million years before the modern walrus emerged.
Bioluminescence evolved 300 million years earlier than previously thought
Bioluminescence has evolved independently in species time and again, but why this happened and when it first appeared has been a mystery.
How ancient viral infections guide embryo development in mice
Ancient viral DNA, once thought junk, now regulates embryo development in mice, revealing complex host-virus interactions.
Do we age because of the dinosaurs?
A new theory suggests dinosaurs’ impact on early mammals’ evolution may explain variations in aging among present-day animals.
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