These are baboons at a watering hole.

Many New World monkeys are small and almost all are arboreal, so knowledge of them is less comprehensive than that of the more easily observed Old World monkeys.

And Nick ended up with a lot of pictures of the rear ends of baboons.

Orangutans have been observed using sticks to pry nutritious seeds from prickly.

Unlike humans and most Old World monkeys, their thumbs are not opposable (except for some Cebids).

Now it's a little bit of a surprise that to get an answer to that question, we have to go to tool use in the chimpanzees.

The latter include for example some myrmecophilous species, as well as a number of sloth moths which are dependent on sloths for their entire life cycle.

Origin About 40 million years ago, the Simiiformes infraorder split into the parvorders Platyrrhini (New World monkeys in South America) and Catarrhini (apes and Old World monkeys in Africa).

When they persisted in doing what they had been forbidden , We said to them Become ( like ) apes despised .

Consequently when they rebelled against the command to refrain , We said to them , Be apes , despised !

And when they turned in disdain from that forbidding We said to them , ' Be you apes , miserably slinking ! '

So when they exceeded the bounds of that which they were prohibited We said unto them be ye apes despised .

So when they exceeded the limits of what they were prohibited , We said to them Be you monkeys , despised and rejected . ( It is a severe warning to the mankind that they should not disobey what Allah commands them to do , and be far away from what He prohibits them ) .

Then , when they rebelled against the commands to refrain , We said to them , Be despicable apes .

And when they persisted in pursuing that which had been forbidden We said ' Become despised apes . '

So when they took pride in that which they had been forbidden , We said unto them Be ye apes despised and loathed !

When they defied the command pertaining to what they were forbidden from , We said to them , Be you spurned apes .

And when they had scornfully persisted in what they had been forbidden , We said to them ' Be apes , despised '

So when they were insolent about that which they had been forbidden , We said to them , Be apes , despised .

When they crossed the limit of the prohibition , We made them turn into detested apes .

Therefore when they revoltingly persisted in what they had been forbidden , We said to them Be ( as ) apes , despised and hated .

And then , when they disdainfully persisted in doing what they had been forbidden to do , We said to them , Be as apes , despised !

When in their insolence they transgressed ( all ) prohibitions , We said to them Be ye apes , despised and rejected .

You know and have known already those among you who had broken the sanctity of the Sabbath , and to whom We had said Become ( like ) apes despised ,

And if We pleased We could paralyse them in their tracks , and they would not be able to move forward or turn back .

And you certainly know of those amongst you who transgressed in the matter of Sabth ( Sabbath Saturday ) We therefore said to them , Become apes , despised !

And had We willed , We could have disfigured their faces while they were in their homes , therefore unable to go forward or turn back .

And well you know there were those among you that transgressed the Sabbath , and We said to them , ' Be you apes , miserably slinking ! '

Did We will , We would have changed them where they were , then they could not go on , nor could they return .

And assuredly ye know of those of you who trespassed in the matter of the Sabbath , wherefore We said unto them be ye apes despised .

And if We listed , surely We should transform them in their places , so that they would be able neither to go forward nor to return

And indeed you knew those amongst you who transgressed in the matter of the Sabbath ( i.e. Saturday ) . We said to them Be you monkeys , despised and rejected .

And if it had been Our Will , We could have transformed them ( into animals or lifeless objects ) in their places . Then they should have been unable to go forward ( move about ) nor they could have turned back .

And you surely knew those of you who violated the Sabbath . We said to them , Be despicable apes !

And if We will , We can cripple them in their place so they can neither move forward , nor go back .

And you know well the story of those among you who broke Sabbath . We said to them , Be apes despised and hated by all .

If We so willed , We would have transformed them where they were so that they would not go forward or backward .

And ye know of those of you who broke the Sabbath , how We said unto them Be ye apes , despised and hated !

And had We willed , We verily could have fixed them in their place , making them powerless to go forward or turn back .

And certainly you know those of you who violated the Sabbath , whereupon We said to them , Be you spurned apes .

And had We wished We would have deformed them in their place then they would neither have been able to move ahead nor to return .

You have surely known of those amongst you who transgressed the Sabbath . We said to them ' Be apes , despised '

Had it been Our will We would have transmuted them ( into monkeys , pigs and stones ) where they were , so that they could neither go forward nor yet return .

And you had already known about those who transgressed among you concerning the sabbath , and We said to them , Be apes , despised .

And if We willed , We could have deformed them , paralyzing them in their places so they would not be able to proceed , nor could they return .