The Unique Reason Reindeer Change Their Eye Color

The video explains how certain animals, like reindeer, have a special eye tissue called tapetum lucidum that reflects light, aiding in low-light vision. Reindeer uniquely change their eye color seasonally, from gold in summer to blue in winter, to adapt to Arctic light conditions. This color change is due to the compression of collagen fibers in their eyes, which affects light reflection and absorption, enhancing their ability to see in darkness but causing slightly blurred vision.

What is the primary function of the tapetum lucidum in animals?

• To enhance color vision

• To help animals see better in low light

• To change the color of the eyes

• To protect the eyes from UV light

Which animal is known for changing its eye color seasonally?

• Polar bear

• Snowy owl

• Arctic fox

• Eurasian mountain reindeer

Why do reindeer eyes change from gold to blue in winter?

• To camouflage in the snow

• To reflect more sunlight

• To better absorb light during long nights

• To attract mates

What happens to the collagen fibers in the reindeer's eyes during winter?

• They change color to match the environment

• They dissolve and stop reflecting light

• They expand and reflect more light

• They compress and reflect shorter wavelengths

What is a downside of the reindeer's winter eye adaptation?

• Reduced ability to see in daylight

• Inability to see colors

• Slightly blurred vision

• Increased eye pressure causing discomfort