Environmental Affairs Minister Edna Molewa and Mozambique's tourism minister will take action to combat rhino poaching, says her department.
Female chickens might have pushed their partners into evolving virtually no penis in order to make mating mutual.
Climate change and increased temperatures will make asthma one of the biggest medical challenges of this century, say experts.
Hundreds of people have converged at the Pretoria National Botanical Gardens for the annual commemoration of the World Environment Day.
Despite efforts to ban the burgeoning business, canned lion hunting is bringing in big money from trophy - and bone - hunters.
In Riverlea, people have had their solar geysers for only two weeks but their shoddy workmanship has dashed many residents' expectations.
With a changing climate and seven-billion mouths to feed, humanity needs to change the way it uses and wastes food.
South Africa has been an early adopter on a continent that has been hostile to the corporate power behind genetically modified organisms.
SA's tally of poached rhino looks set to exceed last year's 668 killed, with officials saying 367 have been killed in the first five months of 2013.
Strong government backing for renewable energy has given a much-needed boost to wind farms.