Fossils provide scientists with evidence that allows them to hypothesize how living organisms have evolved over time. Tiktaalik roseae was a unique organism that has been shown to be 375 million years old. It has been nicknamed the
"fishapod" because it is believed to be a common ancestor of both fish and tetrapods, the first four-legged animals.
How would a scientist study the relationship between the Tiktaalik roseae and modern fish and tetrapods?
create a diagram that hypothesizes ancestry
use relative dating
use transitional fossils to determine age
review its analogous structures
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