Freshwater habitat Rivers, lakes, ponds, and streams are examples of freshwater habitat. Fish, frog, duck, lotus, and water lily are found in freshwater.

Coastal habitat Coastal habitat refers to the region where the land meets the sea.

Ocean Acidification destroying Antarctic marine life

The research took place in the Southern Ocean

Marine snails in seas around Antarctica are being affected by ocean acidification, scientists have found.

An international team of researchers found that the snails' shells are being corroded. Experts says the findings are significant for predicting the future impact of ocean acidification on marine life. The results of the study are published in the journal Nature Geoscience. The marine snails, called "pteropods", are an important link in the oceanic food chain as well as a good indicator of ecosystem health.

"They are a major grazer of phytoplankton and... a key prey item of a number of higher predators - larger plankton, fish, seabirds, whales," said Dr Geraint Tarling, Head of Ocean Ecosystems at the British Antarctic Survey (BAS) and co-author of the report.