Mammals: First Live Births
Placental nutrient transfer (in placentals)
An example of early live birth is the protomammal Kayentatherium, Jurassic period. This cynodont is related to early mammals and its clutch size suggested egg-laying, providing clues about the transition to live birth. The switch to live birth in mammals, including marsupials and placentals, likely evolved once at their common ancestor, suggesting live birth in mammals has a deep evolutionary history.
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An example of early live birth is the protomammal Kayentatherium, Jurassic period. The switch to live birth in mammals, including marsupials and placentals, evolved from a common ancestor.
Subject: Evolution.
An example of early live birth is the protomammal Kayentatherium, Jurassic period. This cynodont is related to early mammals and its clutch size suggested egg-laying, providing clues about the transition to live birth. The switch to live birth in mammals, including marsupials and placentals, likely evolved once at their common ancestor, suggesting live birth in mammals has a deep evolutionary history.
was first published on TST 2 years ago.
