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First fruitful, then futile: Ammonites or the boon and bane of many offspring

First fruitful, then futile: Ammonites or the boon and bane of many offspring | Evolution-1 | Scoop.it
Ammonites changed their reproductive strategy from initially few and large offspring to numerous and small hatchlings.
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Vertebrates share ancient neural circuitry for complex social behaviors: study

Vertebrates share ancient neural circuitry for complex social behaviors: study | Evolution-1 | Scoop.it
Humans, fish and frogs share neural circuits responsible for a diversity of social behavior, from flashy mating displays to aggression and monogamy, that have existed for more than 450 million years, biologists at The University of Texas at Austin...
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