Extremely Fast on Land and Water, good for hunting(not GREAT), and has a really good speed right off the bat. You really don't need to upgrade its speed unless you have nothing else to upgrade. I haven't tamed one yet, but my friend has two and he uses nothing else to hunt underwater(Him and I hunted a Mosasaurus and actually killed it!). It is maybe the most valuable tame for water, and maybe on land.

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