First, go to the Pirate's Fortress and take a picture of a pirate there. You'll want to have the Stone Mask for this, since it prevents you from being caught and thrown out. Then, show this picture to the fisherman in the hut, and he'll give you a bottle with a seahorse in it. Go to Pinnacle Rock, release the seahorse, and follow it to get to the area with the Deep Pythons (the sea snakes, as you call them).
Yes they are
Sea Snakes was created in 2002.
yes
go to the sea lair
No. Sea snakes are carnivores and eat marine fish.
Snakes, including sea snakes, are vertebrates and more specifically reptiles.
sea is shorter by JZ
yes, they are called sea snakes and they are extremely deadly.
Sea snakes can be eaten by any predators that can catch them.
No, sea snakes do not live in deserts, they spend most of their lives in the sea.
yes you must have both
To get the eggs back you have to go into the Pirate's Fortress and make your way through the corridors to find the eggs. It's good to have the stone mask. Try looking for it in the link. While you are there, take your pictograph box and take a clear picture of one of the pirates. Then when you're done go back to the fisherman on the shore and trade the picture for the seahorse. Let him go in the ocean and he will lead you to Pinnacle Rock. At Pinnacle Rock, you need to defeat the sea snakes. So get close to them and tease them, then either throw your Zora fins or use your energy barrier to kill them and then you get the eggs.