Q 01/05

In which Disney film were bearded dragons cast as the deadly yellow-spotted lizards of Camp Green Lake?

A) Hoot

B) Holes

C) Eragon

D) Zathura

Answer · why

B) Holes

Holes used fourteen bearded dragons, four of them for the main parts and the rest as background lizards. Louis Sachar wrote the screenplay from his ow...

Q 02/05

In a well-known experiment, what did most bearded dragons manage to do after watching a trained lizard do it first?

A) Open a door

B) Ring a bell

C) Climb a ladder

D) Press a lever

Answer · why

A) Open a door

Most watchers went on to open a door themselves after seeing a trained lizard do it to reach food. The result showed that bearded dragons can learn by...

Q 03/05

Which snake-like feature did researchers find in bearded dragons' mouths, though a bite does people no lasting harm?

A) Heat-sensing pits

B) Hinged fangs

C) Unhinging jaws

D) Venom glands

Answer · why

D) Venom glands

Venom glands of a primitive kind were reported in bearded dragons by a 2006 study of lizards and snakes. What the dragons use them for is still not un...

Q 04/05

Which nest condition can turn genetically male bearded dragon embryos into fertile, egg-laying females?

A) Low humidity

B) Constant darkness

C) High temperature

D) Heavy rainfall

Answer · why

C) High temperature

High temperature in the nest, typically above 32 °C, overrides the embryo's sex chromosomes. These sex-reversed mothers are fertile and can lay nearly...

Q 05/05

Australia banned wildlife exports in the 1960s, so how did most pet bearded dragons' ancestors leave?

A) Smuggling

B) Zoo exchanges

C) Diplomatic gifts

D) Research permits

Answer · why

A) Smuggling

Smuggling carried the founding animals out between 1974 and 1990, well after the export ban. By the early 1990s a captive-bred population had taken ho...