None. They are howler monkeys.
To let another road user know of your presence. (To warn of danger).
they make a certain whistling/screaming sound to warn other prairie dogs of danger.
No
They take their claws and attack also they climb up trees another thing so they warn the danger by hissing at them.
Yes lions can speak to one another they can warn other lions of danger and signaling another lion to be his/her mate. They roar if mad or angry.
to warn of a possible danger ahead.
bird
Chingachgook warned the others of impending danger by tapping the boat.
what sits on the water and warns ships of the danger coast
the bey
To warn other people regarding the danger.
Warn - or warning