tool use

Such sophisticated tool use is only practiced by a handful of animal species, and, so far, only human beings and carrion crows have been shown to perceive geometric regularity.

…of value that can be used later as tools or as goods for barter, behaviour that strongly suggests that this bird has the ability to plan for a future when these items might be needed.

…in captivity to make simple tools (though some populations of orangutans and chimpanzees make tools in the wild). The great apes were formerly classified in their own family, Pongidae, but, because of their extremely close relation to humans and the fact that orangutans, gorillas, and chimpanzees are not as closely…

Various tools are used in several contexts. Chimpanzees “fish” for termites and ants with probes made of grass stalks, vines, branches, peeled bark, and midribs of leaves. They crack hard nuts open by using stones, roots, and wood as

In the wild, orangutans use tools, but at only one location in Sumatra do they consistently make and use them for foraging. In this context they defoliate sticks of appropriate size to extract insects or honey from tree holes and to pry seeds from hard-shelled fruit. In addition, at least…

…nests, the first evidence of tool use by a reptile.