Although considered a medium sized baleen whale, they grow to between 40 and 50 feet in length and attain weights of 30 to 40 tons. Baleen is a filtering substance much like a fingernail. Whale baleen filters scoops of water and retains food. In the past 135 years, the Gray has been hunted to near extinction twice but has once again reached a population of about 23,000 animals. These are the only grays left on earth and have been protected since 1946.
Grays have good vision also though their habitat is extremely murky.