human bio extended response

How long ago did red deer cave people live

14500-11500 years ago

What are four modern features of red deer cave people

Thick skulls, broad faces, large molars, modern brain traits

What did red cave people eat

Hunted and ate red deer using simple stone tools

What were the red cave people

Scientists debate whether they were a new human species, hybrid group, or unusual early modern humans

What happened 7-6 million years ago

Human-chimp lineages split; great apes have 48 chromosomes

What happened 2.8 to 0.74 million years ago

two ancestral chromosomes (chimp 2a/2b) fuse into human chromosome two, reducing human-line karyotype to 46

What happened 700-500 thousand years ago

Last common ancestor of homo sapiens, Neanderthals, Denisovans likely already had fusion

What happened 400-40 thousand years ago

Neanderthals (46)

What happened 300-30 years ago

Denisovans (46)

What happened 300 thousand years ago to present

Homo sapiens (46)

Did all hominins develop larger brains

Research shows that not all hominins developed larger brains

What are two species that did not develop larger brains

Homo naledi and homo florensiensis

Was increased brain size universal

No and the 2 previous species are evidence

What does evidence show about brain recognition changes in shape, structure and function

Occurred earlier and independently of size increase

What is an example of the previous

Australopithecus africanus had small brain but showed signs of reorganised frontal lobes linked to advanced behaviour.