Question 1

True or false: Babies are born with a full-size nose that shrinks as they mature into adulthood.

Accepted Answer

False. Babies are born with a small, almost normal-looking nose; it grows proportionally with age, especially in males, and never shrinks.

Question 2

True or false: Proboscis monkeys live in harem groups with one dominant male and several females.

Accepted Answer

True. Social structure typically consists of a single mature male, multiple females, and their young, though bachelor groups also exist among younger males.

Question 3

True or false: Proboscis Monkey is found in the Amazon rainforest of South America.

Accepted Answer

False. Proboscis Monkey lives only on the island of Borneo in Southeast Asia. No species of proboscis monkey exists in South America.

Question 4

True or false: Proboscis Monkey has a pot-bellied appearance due to its specialized stomach.

Accepted Answer

True. Proboscis Monkey has a large, hanging belly because of its multi-chambered stomach that ferments leaves. This is similar to a cow's digestion system.

Question 5

True or false: Proboscis monkeys are native to the island of Borneo and nowhere else in the wild.

Accepted Answer

True. Proboscis monkeys are endemic to Borneo, found only on that island across Brunei, Indonesia, and Malaysia, not in mainland Asia.

Question 6

True or false: Proboscis monkeys are excellent swimmers and often dive into rivers to escape predators.

Accepted Answer

True. They have partially webbed feet and hands and are strong swimmers, frequently crossing rivers and diving from trees into water to flee from crocodiles or pythons.

Question 7

True or false: Female proboscis monkeys also grow prominent noses, just slightly smaller than males.

Accepted Answer

False. Females have much smaller, upturned noses; only males develop the iconic long, pendulous nose, which grows with age and social status.

Question 8

True or false: Male proboscis monkeys use their huge noses to amplify warning calls like a trumpet.

Accepted Answer

True. The male proboscis monkey's oversized nose acts as a resonating chamber, amplifying its loud, honking calls, including alarm calls, helping them carry through the jungle.

Question 9

True or false: Proboscis Monkey has webbed feet that help Proboscis Monkey swim across rivers.

Accepted Answer

True. Proboscis Monkey has partially webbed toes, an adaptation for swimming. It often crosses rivers and can even swim underwater to escape predators.

Question 10

True or false: Male Proboscis Monkey develops a larger nose than the female as it matures.

Accepted Answer

True. Sexual dimorphism is pronounced: adult male Proboscis Monkey has a large pendulous nose, while the female's nose is small and upturned. This helps males attract mates.

Question 11

True or false: Proboscis Monkey is classified as a species of great ape, like gorillas or chimpanzees.

Accepted Answer

False. Proboscis Monkey is an Old World monkey, belonging to the family Cercopithecidae. Great apes are in a different family, Hominidae.

Question 12

True or false: Proboscis Monkey is native only to the island of Borneo in Southeast Asia.

Accepted Answer

True. Proboscis Monkey is endemic to Borneo, found in mangrove forests and lowland rainforests. It does not occur naturally anywhere else.

Question 13

True or false: Proboscis Monkey uses its large nose as a snorkel while swimming underwater.

Accepted Answer

False. No evidence supports this. Proboscis Monkey swims well but keeps its nose above water. The nose's main purpose is to attract mates through vocal resonance.

Question 14

True or false: Proboscis Monkey's diet consists mainly of ripe fruit and insects.

Accepted Answer

False. Proboscis Monkey primarily eats leaves, seeds, and unripe fruit. Ripe fruit is avoided because it ferments and causes bloating due to their complex stomach.

Question 15

True or false: The proboscis monkey's nose can grow so long that it flips up over its mouth when it eats.

Accepted Answer

False. The nose actually hangs down past the mouth and may be pushed aside during eating, but it doesn't flip upward—that's a common exaggeration.

Question 16

True or false: Proboscis monkeys have a specialized stomach that allows them to digest toxic leaves.

Accepted Answer

True. They have a complex, multichambered stomach with bacteria that break down tough, toxic leaves and unripe fruit, similar to ruminants like cows.

Proboscis Monkey Trivia Questions