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.
USA TODAY Weather @usatodayweather Coral reefs under siege: Frequency of bleaching has increased almost fivefold since the '80s https://usat.ly/2lViym9 via @USATODAY