biologicalmarginalia:

Two bull Sperm Whales that stranded in Western Scheldt, Netherlands in 1937 and weighed by floating cranes. The 18 meter individual weighed 53 tonnes (~59&rsquo;, 58 tons) and the 16&nbsp;m individual weighed 40 tonnes (~52.5&rsquo;, 44 tons). According to Gerald Wood, these were the largest animals ever weighed in their entirety.
Wood, G. (1982) The Guinness Book of Animal Facts and Feats. Third Edition.
