Evolutionary Concepts and Adaptations

The video explores the concept of 'living fossils' and how all species, including those considered evolutionarily static, are constantly evolving. It highlights the varying rates of genetic mutations across species, with some like gars evolving slowly, while others like the tuatara evolve rapidly. The video concludes that life on Earth is always changing, even if some species appear unchanged. Additionally, the video promotes Skillshare as a platform for personal growth and learning.

What term did Darwin use to describe species that seem unchanged over time?

• Timeless creatures

• Living fossils

• Static species

• Frozen species

What is the primary mechanism through which species evolve over time?

• Environmental changes

• Natural disasters

• Climate shifts

• Genetic mutations

Which species is known to have genes that mutate much slower than most other vertebrates?

• Coelacanth

• Tuatara

• Gars

• Horseshoe crabs

What is unique about the tuatara's evolutionary rate?

• It evolves slower than any other vertebrate.

• It evolves at the same rate as humans.

• It has the fastest evolving genes among vertebrates.

• It has stopped evolving completely.

Why do horseshoe crabs appear unchanged despite evolving?

• Their body plan is highly suited to their environment.

• They have not experienced any genetic mutations.

• They live in isolated environments.

• They have a very short lifespan.

What subtle change has been observed in coelacanths over time?

• Their size has doubled.

• Their facial bones have shifted positions.

• They have developed new fins.

• Their color has changed.

What adaptation might modern coelacanths have developed?

• Increased speed

• Adaptation to saltwater and buoyancy

• Enhanced vision

• Ability to live in freshwater

What is the main message about evolution conveyed in the video?

• All species evolve at the same rate.

• Only certain species are capable of evolving.

• Evolution is a rare occurrence.

• Evolution is a constant process with varying rates.

What is Skillshare primarily known for?

• A video streaming service

• An online learning community

• A social media network

• A platform for online shopping

What did the narrator use Skillshare for?

• To learn cooking

• To watch documentaries

• To improve productivity using Notion

• To learn a new language