Dietary supplements are products intended to supplement one’s diet by providing one or more ingredients which might otherwise be lacking or limited in the foods we consume. A typical and widespread example is the enrichment of cow’s milk with vitamin D.

Climate change and industrial-scale fishing is impacting the krill population with a potentially disastrous impact on larger predators, say scientists.

The Antarctic, one of the world’s last great wildernesses and home to animals such as whales, penguins and leopard seals, is being threatened by the plight of an animal just a few centimetres long, according to scientists.