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They had used them for feet! Hope this helped:)
What else can I help you with?
What is the fin of a pelycosaur?
their sail like fins are to help them with body temperature
What did pelycosaurus use their huge sail-like fins on their backs for?
Pelycosaurus, specifically the well-known genus Dimetrodon, likely used its sail-like fins for thermoregulation, helping to absorb heat from the sun or dissipate excess heat. This adaptation would have allowed them to maintain optimal body temperatures in varying environmental conditions. Additionally, the sail may have played a role in display and mating behaviors, signaling fitness to potential mates or rivals.
Who made the first sail boat?
Sailing has been around since prehistoric times, therefore the name of the person who made the first sail boat is not recorded.
What dinosaur had fins on its back?
It was amargasaurus which was a type of sauropod
Does Jacques cartier like to sail?
he was an explorer! of course he would have liked to sail.
How do you put sail in a sentence?
Like that! If it were sail as in I sailed a cross the sea you could put you are a sailor you can SAIL very well. But if it was sail as in the sail on a ship, you could put the SAIL on the ship was ripped. And so on. Hope I answered your question xx
What do boats generally sail on?
Water like the sea or lakes, but the sails sail on the wind and air. Hope this is the answer you were looking for!
What invention allowed ships to sail into the wind?
Wut made ships sail in the wind was that using a persicet sail or flag will pick up the wind and will push the air out and sail..just like u swinging on a swing 
What did the lateen sail look like?
The lateen sail looks like a triangle. The point is on one side and the base is on the other side. The base of the sail would be parallel to the main mast. A spar at the top of the sail is attached to the mast. It is mainly used on sunfish and other extremely small sailing craft.
How where vikings like pirates?
because they sail on ships.
What swells out like a sail in the wind?
Paragliding aerofoils.
Who did bering sail fior?
because he felt like it
