Ape

Let's be clear about it: humans are not monkeys. Nope.
We are Great Apes and there is a substantial difference: we have
no tails, four atrophied vertebrae having welded together to form the
coccyx. This has substantial consequences and bears witness to an
abandonment of arboreal life. Having hit the ground, as it were, we
then encountered the conditioned for the development of intelligence.

source: Wikipedia

Man is not the only species to have developed tools. Apes forage with rocks,
communicate with each other, groom each other. (This grooming thing I find
important. One reads about human descent and all those creatures are in a bad need
of a makeover. Horrible tangled hair, no hygiene. Are we sure about this??!!)

In any event, the whole issue of our ancestors (or competitors) will be a center
of interest for me in 2018. Below, how the Smithsonian Museum in Washington
presents things:

http://humanorigins.si.edu/evidence/human-family-tree

An honest look at the issues involves something of a mind clear. We are so used to thinking
of the uniqueness of man, and that everything else is animal. But there were competing
groups of ape like creatures around at the same time, of varying intelligence, living in small
groups. The Smithsonian talks of early human species!! More bone chilling, Homo Habilis,
the first African known to use tools, was a staple in the diet of large cats. Euh! No wonder
they left Africa.