Also, bulging eyes can signal a thyroid disorder known as Graves' disease. Eye allergies related to conditions such as hay fever also can produce swollen eyes. Other types of allergies, such as reactions to certain foods or chemicals, can cause swollen eyelids.
Want to know more about one of your close relatives? Read our gorilla facts for kids to learn about these fearsome, but peaceful, animals. This article is part of our African Animals series. Gorilla Facts: Introduction. Gorillas are the worldâs largest primates. They are members of the Hominidae family. This family is also known as the âGreat Apeâ family, and also includes three other types of primate: orangutans, chimpanzees, and humans. There are two species of gorilla: the Eastern Gorilla, and the Western Gorilla.
Mountain gorillas are descendants of ancestral monkeys and apes found in Africa and Arabia during the start of the Oligocene epoch (34-24 million years ago). The fossil record provides evidence of the hominoid primates (apes) found in east Africa about 22â32 million years ago. The fossil record of the area where mountain gorillas live is particularly poor and so its evolutionary history is not clear.