From History: circa 15 Million Years Ago
Inferior frontal gyrus homologues, Mirror neuron systems
All mammals, birds, and reptiles communicate on a spectrum shaped by evolution. Great ape communication goes back about 15 million years.
Great ape communication goes back roughly 15 million years, long before human language. What we call language didn’t emerge from nothing. It grew out of older systems of sounds, gestures, and signals shared across animals as evolution progressed.
was first published on TST 2 years ago.
Now for our second story.
From History: ~3.7 Billion Years Ago (+/- 100 million)
Subject: Virus Evolution.
About 3.7 billion years ago, RNA virus ancestors may trace back to the RNA world, but we can’t prove whether they predate LUCA or arose just after.
By 3.7 billion years ago, RNA-dependent RNA polymerase (RdRp) is ancient. They are found across diverse RNA viruses and likely predate the diversification of modern cells. Some researchers propose RNA viruses may be as old as early cellular life. So Riboviria could have roots near the origin of life itself.
was first published on TST 1 week ago.