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Show us what you know about great apes to enter a monthly draw for a free copy of the new book, Just Like Us.

To enter, simply complete the short quiz below. Each great apes species has two statements to choose from - select the one that is the most accurate. Good luck!

Gorilla

Adult gorillas are thought to consume approximately 18kg of food a day. They rarely drink water directly from a source – most of their water intake is from the plants they eat.

Chest beating displays, only done by male gorillas, are a mode of communication used to express victory, to challenge or threaten, or to show strength.

Orangutan

The most terrestrial (ground-dwelling) of the great apes, orangutans spend very little time up in the trees of the forest canopy.

Weighing approximately three pounds at birth, newborn orangutans soon have enough strength in their fingers to grasp their mother's chest – their only mode of transportation. They transition to riding on their mother’s back at around two years of age, begin to travel alone after three, and by four years of age, juveniles begin to climb trees.

Chimpanzee

Chimpanzees frequently pant-hoot—a complex series of loud long-distance vocalizations—when they arrive at a food source.

Chimps are incredibly strong—perhaps up to 4 times the strength of a comparable-sized human—owing to differences in muscle performance. Their strength, particularly in the upper body, would be useful for tree climbing, swinging from vines, and swimming.

Bonobo

Bonobos have pink lips and dark faces, with hair parted on the top of their heads. They also have a more slender build and longer legs than chimpanzees.

Bonobos live in one of the most remote regions within the Congo Basin; bonobo groups tend to be more peaceful than chimpanzees and are usually led by males.