Tide pools are areas on rocks by the ocean that are filled with seawater. Tide pools can be small, shallow puddles found high up on the shore or huge, deep holes nearer to the sea. Tide pools form when the ocean covers the beach twice a day. Some of the plants and animals that live close to the sea are covered when the tide washes over them. They have to be able to survive in both wet and dry conditions. The tides bring fresh oxygen and food to them. Between tides, some of the smaller pools become too warm and begin to dry up. Many of the animals hide under cool, damp rocks and moist seaweeds so that their bodies do not dry out before the tide comes in again.
http://www.calstatela.edu/faculty/eviau/…
Many of these pools exist as separate entities only at low tide. Tide pools provide a home for hardy organisms such as sea stars, mussels and clams. Inhabitants must be able to cope with a constantly changing environment — fluctuations in water temperature, salinity, and oxygen content. Huge waves, strong currents, exposure to midday sun and predators are only a few of the hazards that tide pools' animals must endure to survive.
Waves can dislodge mussels and draw them out to sea. Gulls pick up and drop sea urchins to break them open. Starfish prey on mussels and are eaten by gulls themselves. Even black bears sometimes feast on intertidal creatures at low tide. Although tide pool organisms must avoid getting washed away into the ocean, drying up in the sun, or getting eaten, they depend on the tide pool's constant changes for food.
http://en.wikipedia.org/wiki/Tide_pool
Tidepools form where pools of water collect in rocky hollows at low tide. There are easier places in the ocean to survive. Tides, temperature, saltiness--all these are constantly changing . Only hardy animals can survive in the tidepool. Most of them are animals without backbones--invertebrates--which are fairly simple compared to other kinds of sea animals, such as fishes and whales. Three basic laws of survival rule life in the tidepool:
http://www.calstatela.edu/faculty/eviau/…
Many of these pools exist as separate entities only at low tide. Tide pools provide a home for hardy organisms such as sea stars, mussels and clams. Inhabitants must be able to cope with a constantly changing environment — fluctuations in water temperature, salinity, and oxygen content. Huge waves, strong currents, exposure to midday sun and predators are only a few of the hazards that tide pools' animals must endure to survive.
Waves can dislodge mussels and draw them out to sea. Gulls pick up and drop sea urchins to break them open. Starfish prey on mussels and are eaten by gulls themselves. Even black bears sometimes feast on intertidal creatures at low tide. Although tide pool organisms must avoid getting washed away into the ocean, drying up in the sun, or getting eaten, they depend on the tide pool's constant changes for food.
http://en.wikipedia.org/wiki/Tide_pool
Tidepools form where pools of water collect in rocky hollows at low tide. There are easier places in the ocean to survive. Tides, temperature, saltiness--all these are constantly changing . Only hardy animals can survive in the tidepool. Most of them are animals without backbones--invertebrates--which are fairly simple compared to other kinds of sea animals, such as fishes and whales. Three basic laws of survival rule life in the tidepool:
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