he said interweb unironically
this person is now my favorite theorist
I played the video but i stared at your avatar gif for the majority of the time.
Sharks use a mixture of both dynamic lift and their liver to keep them afloat, similarly to a swim bladder.
[editline]24th April 2014[/editline]
As for the tail:
[quote]Tails provide thrust, making speed and acceleration dependent on tail shape. Caudal fin shapes vary considerably between shark species, due to their evolution in separate environments. Sharks possess a heterocercal caudal fin in which the dorsal portion is usually noticeably larger than the ventral portion. This is because the shark's vertebral column extends into that dorsal portion, providing a greater surface area for muscle attachment. This allows more efficient locomotion among these negatively buoyant cartilaginous fish. By contrast, most bony fish possess a homocercal caudal fin[/quote]
He's comparing sharks to bony fish which is not correct. Sharks are of an entirely different class of animal than bony fish.
Ooooh an armchair zoologist. Haven't seen one of those in a while. With Wikipedia and websites on such topics available I thought maybe they'd die out.
Lloyd is generally awesome though.
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