how long can they live?
Upto 73 years
Blue whale
The most reliable age estimations are from ear plugs. Blue whales secrete earwax (cerumen) throughout their lives forming long, multilayered plugs. Each chronologically deposited light and dark layer (lamina) indicate a switch between fasting during migration and feeding, and one set is laid down per year, and thus the number of these layers can be used as an indicator of age. The maximum age determined from earplug laminae for a pygmy whale is 73 years (n=1133). Prior to the development of ear plugs as an ageing method, layers in baleen plates were used, but these wear down and are not a reliable measure. In 
where is the pancreas gland located and what does it do It is located in the abdomen behind the stomach and functions as a gland which diseases are caused if this organ does not operate at its best? Diabetes can a human live normally if this organ is taken out from their system? It is possible for a person to live without a pancreas, provided that the person takes insulin for proper regulation of blood glucose concentration and pancreatic enzyme supplements to aid digestion. is this organ present in other living organisms as well? Yes it is present in all vertebrates but its precise form and arrangement varies widely. what is the meaning of the above type of species? Vertebrates () comprise all species of animals within the subphylum Vertebrata () (chordates with backbones). could you name a few animals that fall under this type? They range in size from frog species "Paedophryne amauensis", at as little as , to the blue whale, what is the size of the latter? It can reach length of 29.9 meters (98 feet) what does it eat? Euphausiids (krill)
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Blue whale [SEP] Life span
The most reliable age estimations are from ear plugs. Blue whales secrete earwax (cerumen) throughout their lives forming long, multilayered plugs. Each chronologically deposited light and dark layer (lamina) indicate a switch between fasting during migration and feeding, and one set is laid down per year, and thus the number of these layers can be used as an indicator of age. The maximum age determined from earplug laminae for a pygmy whale is 73 years (n=1133). Prior to the development of ear plugs as an ageing method, layers in baleen plates were used, but these wear down and are not a reliable measure.