Q 01/05

What do golden lion tamarin mothers usually give birth to, a rarity among monkeys and apes?

A) One baby

B) Twins

C) Triplets

D) Quadruplets

Answer · why

B) Twins

Twins are the norm: in one Brazilian reserve, 78% of recorded births in 2001 were pairs. The rest of the family helps carry and raise them.

Q 02/05

Once the babies are a few weeks old, which member of a golden lion tamarin family usually carries them most?

A) The mother

B) An older sister

C) The father

D) A grandmother

Answer · why

C) The father

The father does the biggest share of the carrying once the first few weeks have passed, and the mother takes the infants back to nurse. Brothers and s...

Q 03/05

Which everyday Brazilian object has pictured a golden lion tamarin since 2002?

A) A banknote

B) The national flag

C) The coat of arms

D) A football crest

Answer · why

A) A banknote

A banknote: the 20-reais note, launched in 2002, carries the monkey, a year after the 2-reais note gave the same honour to a sea turtle.

Q 04/05

How did Washington's National Zoo once prepare golden lion tamarins for life in the wild?

A) Showing them forest films

B) Housing them with wild pairs

C) Feeding them only at night

D) Letting them range free

Answer · why

D) Letting them range free

Letting them range free at the zoo went on for many years. The idea was to rehearse treetop life before the monkeys were sent to Brazil for release.

Q 05/05

Where does a golden lion tamarin family usually huddle together to sleep through the night?

A) Leaf nests

B) Rock ledges

C) Tree holes

D) Ground burrows

Answer · why

C) Tree holes

Tree holes were the bedroom on about 64% of nights in one long study. A family keeps a few favourite hollows and often returns to the same one the nex...