Cuttlefish vs.. Alligator Snapping Turtle

[Typhoid]

Cuttlefish:


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Cuttlefish possess an internal structure called the cuttlebone, which is porous and composed of aragonite, to provide the cuttlefish with buoyancy. Buoyancy can be regulated by changing the gas-to-liquid ratio in the chambered cuttlebone via the ventral siphuncle.[3] Each species has a distinct shape, size, and pattern of ridges or texture on the cuttlebone. The cuttlebone is unique to cuttlefish, one of the features contrasting them with their squid relatives. Cuttlebones are traditionally used by jewelers and silversmiths as moulds for casting small objects.[4] They are probably better known today as the tough material given to parakeets and other caged birds as a source of dietary calcium.

Alligator Snapping Turtle:


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Though their potential lifespans in the wild are unknown, alligator snapping turtles are believed to be capable of living to 150 years of age. According to an episode of "Dirty Jobs" on the Discovery Channel, there are reports of living Alligator Snapping turtles with musket balls from the American Civil War lodged in them. In captivity, they typically live from anywhere between 20 to 70 years of age.