Saturday, February 23, 2008

Posting 4

Giant Manta Ray
Giant Manta Rays can be distinguished by strange paddle-like lobes or fins at the front of their bodies. They can weight up to 3 ton and a wing span of up to 8 meters. That is almost 3 stories wide!! Despite their huge size, they mainly live near shore. However, sometimes you may find them in the open seas.

Horseshoe crab
These prehestoric-looking horseshoe crabs are living fossils. They are a close relative of the trilobites that roamed the sea floors and beaches 300 million years ago! Their head and abdomen are covered by a horseshoe-shaped shell and a long tail extends from thier back. They mainly feed on molluscs, worms, and other small invertebrates.

Sea Spider
Most sea spiders have eight walking eights but some have more. Althought few can swim, most sea spiders live on the ocean floor, feeding on corals. hydroids, and anemones. They puncture the outer membrane with long proboscis, sucking at the internal tissues. Sea spiders have no gut or gill. They absorb and release gases, nutrients and waste by simple diffusion through their thin body parts. Most sea spiders are tiny but some can reach monstrous propotions.

Pacific Hatchetfish
Pacific hatchetfish are found in the Atlantic and Indian oceans as well as the Pacific. Despite their fearsome appearance, they are small harmless fish that feed on small invertebrates.Their large bulging eyes and mouth point upwards, suggesting that it attacks its prey from below. They are middle to deep-waters species living 3870 meters below sea level.

Chameleons
Chameleons vary greatly in size from 1 inch to 31 inches. On each of the chameleons foot the five toes are fused into a group of two and a group of three. These specialised feet allows them to grip tightly on branches. All chameleons are able to change their skin color. Different species of chameleons are able to change into different colours. They can change colour for camouflage or communication.

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