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Author Topic: How big could a sea animal get?  (Read 1395 times)

Offline oatman

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How big could a sea animal get?
« on: 05/07/2014 12:32:52 »
I'm aware of the restrictions of size for land animals due to bones not being able to support you over a certain size, but in the sea where this doesn't matter is there an ultimate size limit? Or is it just too much effort to keep a bigger body going, if not why don't we see things bigger than blue whales?!


 

Offline CliffordK

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Re: How big could a sea animal get?
« Reply #1 on: 05/07/2014 16:10:41 »
The ocean should give good support to super-large creatures. 

However, one limitation may be food supply.  The largest of the sharks, Megalodon went extinct about 1.5 million years ago, perhaps due to food supply limitations.
 

Offline Don_1

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Re: How big could a sea animal get?
« Reply #2 on: 16/07/2014 10:23:59 »
At around 30m long and 200t in weight, isn't the Blue Whale big enough?
One Blue Whale is almost as long as two football pitches.

Clifford's suggestion that the Megalodon's extinction may have been a result of food supply limitations is one good point. I would also suggest that food consumption, as the animal gets bigger, takes up more of the animals time.

So it may be the case that if the animal is too big, there would be supply limitations and time limitations, both in respect of locating sufficient food and the time it might take to consume and digest it.
 

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Re: How big could a sea animal get?
« Reply #2 on: 16/07/2014 10:23:59 »

 

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