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Can New Species Evolve From Cancers? Maybe. Here’s How.
Researchers agree it’s a long shot, but transmissible cancers could theoretically evolve into independent species. Certain weird parasites might be living proof.
Scientists Debate the Origin of Cell Types in the First Animals
Theories about how animals became multicellular are shifting as researchers find greater complexity in our single-celled ancestors.
Rapid Oxygen Changes Fueled an Explosion in Ancient Animal Diversity
Skyrocketing animal diversity a half-billion years ago was linked to spikes and dips in marine oxygen levels, according to a detailed geological study.
She Finds Clues to Future Sustainability in Old Food Webs
By reconstructing prehistoric food webs and analyzing the diverse interactions of humans with other species, the ecologist Jennifer Dunne is developing a new understanding of sustainability through network science.
Neuroscience Readies for a Showdown Over Consciousness Ideas
To make headway on the mystery of consciousness, some researchers are trying a rigorous new way to test competing theories.
New Squid Genome Shines Light on Symbiotic Evolution
Researchers hope that the genes of a glowing squid can illuminate how animals evolved organs for beneficial bacteria.
Jellyfish Genome Hints That Complexity Isn’t Genetically Complex
Jellyfish didn’t need novel genes to take an evolutionary leap in complexity.
A ‘Self-Aware’ Fish Raises Doubts About a Cognitive Test
A report that a fish can pass the “mirror test” for self-awareness reignites debates about how to define and measure that elusive quality.