It depends on the spider. Most Spiders 'take over' an existing hole - such as a disused rat burrow - rather than dig one for themselves. They'll usually line the hole with silk to form a 'plug' at a comfortable depth. This creates a living space just big enough for the spider to sit comfortably, waiting for prey to come close enough to be caught.
It makes a burrow
YES.
very unlikely, because rabbits need to burrow and it would be very rare for them to go out into the wide open space of a beach with nowhere to hide.
under it to keep water out
rabbits I think
grass and soft mud
Rabbits are animals that live in burrows.
In a Nest in their burrow. Rabbits live in a burrow near long grass so that most predators don't get to them so they wont be a rabbit roast or somethings dinner.
Rabbits burrow into the ground.
you have to put a heating pad under it
Answer: Warren!!! Get it? A warren is where rabbits live, its like a burrow. See? Funny!
Rabbits make their burrows by digging with their hind legs.