Symbiosis describes a long term relationship between two individuals of different species. This relationship can be mutualistic (where both individuals benefit), parasitic (where one organism benefits at the other’s expense) or commensalistic (where one organism benefits but not at the expense of the other).

Giant Tube Worm

Giant tube worms are found near hydrothermal vents such as the ones on the Galapagos Rift. They live over a mile under the sea where temperatures range from 2 to 30°c. They are able to tolerate extremely high hydrogen sulphide levels which are usually toxic to other organisms. Their red “plumes” at the tips of […]