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Remarkably for 30 million years, the entire first half of proboscidean evolution, only two of the eight groups evolved, most proboscideans over this time were nondescript herbivores ranging from the size of a pug to that of a boar. A few species got as big as a hippo, yet these lineages were evolutionary dead-ends. They all bore little resemblance to elephants.
Found on CNN 3 years ago
The aim of the game in this boom period of proboscidean evolution was' adapt or die,' habitat perturbations were relentless, pertained to the ever-changing global climate, continuously promoting new adaptive solutions while proboscideans that didn't keep up were literally, left for dead. The once greatly diverse and widespread mastodonts were eventually reduced to less than a handful of species in the Americas, including the familiar Ice Age American mastodon.
Found on CNN 3 years ago
We didn't foresee this result, conservatively, our data refutes some recent claims regarding the role of archaic humans in wiping out prehistoric elephants, ever since big game hunting became a crucial part of our ancestors' subsistence strategy around 1.5 million years ago.
Found on CNN 3 years ago
This isn't to say we conclusively disproved any human involvement, in our scenario, modern humans settled on each landmass after proboscidean extinction risk had already escalated. An ingenious, highly adaptable social predator like our species could be the perfect black swan occurrence to deliver the coup de grâce.
Found on CNN 3 years ago
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