Answer: The Megalodon
Portman collaborated (using her birth name, Natalie Hershlag) with Abigail A. Baird, who has a collaboration path (Gazzaniga, Michael S. -> Victor, Jonathan D.) leading to Joseph Gillis, who has an Erdős number of 1.
Answer: Plate Tectonics
One famous transform boundary is the San Jose fault line in California. Scientist can now track the movement of the plates through GPS.
Answer: The Giant Sequoia
The Giant Sequoia in California's Sequoia National Park is about 52,500 cubic feet (1,487 cubic meters) in volume. It has been alive for approximately 2,000 years.