Quantum Birds

What is the main mystery discussed in the text regarding birds?

• How birds fly

• How birds sense Earth's magnetic field

• How birds communicate

• How birds find food

What hypothesis was proposed in the late 1970s about birds sensing magnetic fields?

• Birds use their beaks to sense magnetic fields

• Birds have a special organ for magnetoreception

• Birds use a light-sensitive molecule to sense magnetic fields

• Birds rely on the sun to navigate

What is the radical pair hypothesis related to?

• Bird migration patterns

• Light-sensitive molecules and magnetic fields

• Bird communication methods

• Bird feeding habits

Where were cryptochromes specifically searched for in birds?

• In bird feathers

• In bird eyes

• In bird beaks

• In bird wings

When did researchers start trying to make cryptochromes?

• 1990

• 2000

• 2004

• 2010

What is the significance of the study mentioned in the text?

• It proves birds can talk.

• It shows birds can see colors.

• It advances understanding of magnetoreception.

• It explains bird migration patterns.

What does the author find surprising about quantum mechanical effects in birds?

• They are unrelated to birds.

• They could be housed within the eye of a bird.

• They are only found in fish.

• They are responsible for bird songs.