Collier's Encyclopedia . Blue Whale ACS Cetacean Fact Sheet . Oceanography, sixth edition .
Whales are aquatic mammals.
Though the live in the water these animals come up every so often for air. The whale that I chose to research is the Blue Whale. The blue whale is the largest animal to ever live. The females are generally larger than the males and can grow to about thirty meters and weigh more than one hundred tons. The baleen may grow to about one meter in length.