There are an estimated 150 million jellyfish stings worldwide every year. Some are serious and even life-threatening, but most are just painful. So what’s the best advice if you do get stung?

The sex of sea urchins cannot, with very few exceptions, be ascertained by any external morphological character. A very simple method of distinguishing male and female is to pass an alternating ...

Sea urchins can appear to be beautiful quilled shells to some and may make the mistake of grabbing one. If you’ve ever stepped on or caught one, you will remember it forever. A sting from the ...