Current thinking on how the Toxoplasma gondii parasite invades its host is incorrect, according to a study published today in Nature Methods describing a new technique to knock out genes. The findings could have implications ...
Definition. Coral bleaching is a process whereby the coral colonies lose their colour, either due to the loss of pigments by microscopic algae (zooxanthellae) living in symbiosis with their host organisms (polyps), or because these zooxanthellae have been expelled.
The Yomiuri ShimbunâAP Corals are bleached on a seabed near Okinawa island on Aug. 26, 2013. A chemical in sunscreen may be contributing to the destruction of the coral reefs as swimmers trying to protect their skin venture near reefs, according to new research.