Best Nap Ever: Rotifers Wake Up After 24,000 Years

The video explores the remarkable survival of rotifers, tiny aquatic animals, which can endure being frozen for 24,000 years. Researchers found living rotifers in ancient Siberian permafrost, suggesting they have mechanisms to prevent ice damage. The video also discusses skepticism around similar findings in other organisms. Additionally, it covers a study on ancient goat DNA, revealing insights into early domestication practices 10,000 years ago, showing a mix of wild and managed traits.

What is the primary evidence that suggests rotifers survived for 24,000 years in permafrost?

• The size of the rotifers

• DNA fragments matching rotifers found in the soil

• The color of the soil

• The presence of modern rotifers in the soil

What unique ability do rotifers have that was confirmed through experiments?

• They can change color

• They can survive being frozen and reproduce

• They can fly

• They can grow to large sizes

Which other organisms have been reported to survive long-term freezing?

• Fish and amphibians

• Nematode worms and plant seeds

• Bacteria and viruses

• Birds and mammals

What major historical event did the rotifers potentially sleep through?

• The invention of the wheel

• The domestication of goats

• The discovery of fire

• The building of the pyramids

What does the ancient goat DNA reveal about early domestication practices?

• Goats were fully domesticated 10,000 years ago

• Goats were not used for milk

• Goats were only found in Europe

• Humans used a mix of modern and ancient practices

What characteristic of the ancient goats suggests they were not fully domesticated?

• They had large, scimitar-shaped horns

• They had small bodies

• They could not reproduce

• They were all white

What practice did ancient herders use that is still common today?

• Feeding goats only grass

• Keeping goats as pets

• Culling most males and selecting a few for breeding

• Allowing all males to breed