SeaWorld Orlando orca whale Kayla dies after illness
SeaWorld says Kayla, aged 30, "inspired generations of guests and employees to care and learn".
Author Archives: BBC News - Science & Environment
Fast food giants under fire on climate and water usage
Investors are calling on KFC, McDonalds and others to cut warming gases from their dairy and meat supply chains.
Periodic table turns 150
How much do you know about the iconic symbol of science pinned to every classroom wall?