Question

Ape species began to dwindle during the Miocene leaving few ape species, a situation that exists up to the present. It is thought that ape species numbers were reduced at that time because
a) interspecies warfare caused whole lineages to go extinct
b) early apes were used to ice age conditions and could not effectively adapt to life after the ice age
c) the climate warmed and the forests expanded and apes had primarily been desert and savannah species
d) the climate cooled and forests that the early apes lived in began to decline leaving only a restricted ecological zone for these forest-dwellers to live in
e) most of the individual ape species interbred and became one species

Answer

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