One day, Simon the fish was strolling in the park wearing his favourite coat and his brand new Trilby hat. Simon was a very smartly dressed trout and he truly looked splendid, tipping his hat in a very amiable fashion to the smiling, happy, friendly people walking by.
Just then, Simon’s eyes bulged and he collapsed to the ground, gasping and flailing wildly until Simon, sadly, died.
You see children, fish are animals that obtain oxygen from water by use of a system of external gills which are highly branched networks of capillaries that bring the blood close to the oxygenated water. In air, the gills collapse under their own mass, and the capillaries shut down, so the fish starves for oxygen even though it is immersed in oxygen-rich air.
What a shame Simon didn’t know that.
Join us tomorrow, kiddies, when Donna the Dolphin goes mountain climbing!