In a separate paper, Blackledge has shown that female orb - web spiders rely on occasionally capturing
exceptionally big animals.
Not exact matches
The paper is «a
big step forward» because running such tests in the wild «is
exceptionally challenging,» says Alex Thornton, an
animal cognition researcher at the University of Exeter in the United Kingdom.
Add the extra probems of getting a brain pan
big enough to hold a brain out of the woman's birth canal (making childbirth
exceptionally painful as well as dangerous for humans compared to other
animals) and the greater likelihood of death in childbirth of an older woman and you have a species that won't survive.