cladogram
like a family tree, representing ancestral/evolutionary relationships between species
pollux
opposable thumbs
hallux
opposable big toes
prehensile tails
some primates’ tails have sensitive pads; able to grab objects, hang from trees
phylogeny
history of evolution of a species or group
stereoscopic vision
characteristic of primates; forward-facing eyes with overlapping visual fields
last common ancestor
most recent common ancestor between 2 or more groups (immediately before bifurcation)
derived characteristics
represent traits unique to a taxon
taxa
(singular: taxon) a group of organism at any classification level