Yes, clams have to burrow into sand or mud in order to protect themselves
to burrow themselves
Yes. Just like baby clams, they need to burrow in the sand.
Soft shell clams live in mixtures of mud and sand or mud and gravel. near freshwater. This is because the salinity is reduced by freshwater runoff and seepage.
grass and soft mud
Yes, frogs may burrow holes into the ground. They may do this before winter so they can hibernate; the burrow keeps them warm.
During the winter, clams hibernate into the mud. When the temperatures falls below 40 degrees will begin their hibernation phase.
Neither. The platypus's burrow is dry earth, dry soil. They do not burrow in sand as it will not support the tunnel. Neither do they dig in mud. Their burrow is dug above the waterline of a creek or river, and remains dry inside.
Steamer clams are small clams often cooked by steaming for people to eat. Eggs hatch into larvae which turn into clams which live in mud in shallow salt water areas.
to keep away from the sun as they must stay moisturised
Yes. Clams burrow in the sand when threatened and when the tide ebbs.
Yes
. The soft-shell clam digs a permanent burrow in which it remains for life unless disturbed. As it grows the clam enlarges and deepens its burrow. When the tide is in, this clam's long "neck" (actually its siphons) is thrust up to the opening of the burrow for feeding. When the tide goes out, the clam withdraws its "neck" and closes its shell until the tide comes in again.