Fish vs. Amphibian
What was the first step in the water to land transition?
Lungs
Who discovered tiktaalik?
Neil Shubin
Which did snakes lose first front or back legs?
front legs
What did Neil Shubin discover ?
tiktaalik
How were fish able to move on the land?
Their fins turned into limbs.
Where was tiktaalik found
Canadian arctic
Did turtles get a top or bottom shell first?
Top shell
Where does Neil Shubin teach?
University of Chicago
Why did some fish evolve into amphibians?
They lived in shallow pools and needed to travel from pond to pond.(Food, Predators, and Oxygen)
What are some key characteristics of tiktaalik?
gills & lungs and limb shoulder & hip bones and scales.
How did turtles get their shells?
Their ribs broadened and flattened until they morphed into a shell.
What does Neil Shubin teach?
Human anatomy
How were early amphibians about to withstand the change in density?
They developed stronger spines.
Why was tiktaalik important?
Intermediate fossil that shows important step in the transition process.
What do frogs share with fish?
Similar life cycles.
Why is his background in paleontology important for the subject he teaches?
The best road maps to the human body lie in the bodies of other animals.
What trait helped early amphibians be more aware of their environment?
Neck joints.
Is tiktaalik more fish-like or more amphibian-like?
Neither it is the bridge between both.
What are missing links?
Missing links don't exist they are an outdated idea from when when thought evolution was a long chain not branched like we know today.
Why is Neil Shubin's work important?
It helps show the past and the path organisms took to get to land and how organisms over time evolved into the animals around us and how the traits we humans have today came about.