Some see 5.0 seconds a possibility. Because 6' 5 Usian Bolt broke the mathematical model that had fit 100-meter record data for almost a century, his incredible performance has reset the bar for how fast researchers believe humans ultimately can run.
Lobsters may eat other lobsters in captivity, but this has not been observed in the wild. It takes an American lobster 6-7 years to get to an edible size, but that is just the beginning. Lobsters are long-lived animals, and are thought to be capable of living over 100 years.
A female lobster mates primarily when she is in the soft-shell state right after she has shed her shell (molted). Female lobsters can carry live sperm for up to two years. At any time she may decide to fertilize her 3,000-75,000 eggs.