Final answer:
Chimpanzees have been observed modifying twigs for termite fishing before arriving at the termite mound, making the statement false. In 1960, Jane Goodall observed chimpanzees using tools to fish for termites, and since then, they have been observed making different types of tools.
Step-by-step explanation:
Chimpanzees have been observed to modify twigs for termite fishing before actually arriving at the termite mound, so the statement is False. In 1960, Jane Goodall observed a chimpanzee strip leaves from a twig, poke the twig into a termite mound, and then extract the termites clinging to it. This behavior demonstrated the chimpanzee's ability to use tools for fishing termites. Since then, chimpanzees have been seen making various types of tools, such as sharpened sticks used as spears for hunting and stones used as hammers.