Observation has confirmed that that multiple species can use tools, including monkeys, apes, several birds, sea otters, and others. [[Philosophers]] [[original]]ly [[thought]] that only humans had the ability to make tools, until zoologists observed birds[1] and monkeys[2][3][4] making tools. Now humans' [[unique]] relationship to tools is considered to be that we are the only species that uses tools to make other tools. | Observation has confirmed that that multiple species can use tools, including monkeys, apes, several birds, sea otters, and others. [[Philosophers]] [[original]]ly [[thought]] that only humans had the ability to make tools, until zoologists observed birds[1] and monkeys[2][3][4] making tools. Now humans' [[unique]] relationship to tools is considered to be that we are the only species that uses tools to make other tools. |