In Florida thousands of dead fish have been found floating in a creek, while in Texas 200 American Coots were discovered dead on a bridge in Tyler.

In Wilson County, Tennessee, 100 blackbirds dropped dead from the sky and in New Zealand, hundreds of Red Snapper fish washed up dead.

Brazil scientists have also been left baffled after 100 tons of sardines, catfish and croaker washed up dead near Parangua.