Wels or sheetfish. A type of catfish that can grow up to 5 m (16 ft) in the wild and is Europe's largest freshwater. It is found in the Rhine River in Germany eastwards to the Black and Caspian Seas. The elongated wels body consists of a powerful forebody and a laterally greatly compressed tail shaft; the prominent anal fin merges with the caudal fin. This fish, with its calm undulating tail movements normally has its long pair of upper jaw barbels pointing straight forward, while the four smaller barbels of the lower lip hang down. The dorsal fin, consisting of just four rays, seems small for such a powerful animal. In the wild they have been known to eat ducks where they rush up behind them at night, sucking them into their mouths with a vortex motion. In their native habitat they feed on other fishes mainly eels, burbot, tench and roach, but it also takes water voles.
A name for the Tepin chilli. It is thought that Tepin, also called Chiltepin, is the original wild chilli - the plant from which all others have evolved. It is a tiny round berry slightly larger than a peppercorn. It is very decorative and bright scarlet in colour and, despite its high heat level, it is attractive to wild birds, who helped to distribute it across the prehistoric Americas. Birds do not have the same sensitivity to capsaicin as mammals as capsaicin acts on a specific nerve receptor in mammals and avian nervous systems are rather different. Chilli peppers are in fact a favorite food of many birds living in the chilli peppers' natural range. The flesh of the peppers provides the birds with nutritious meal rich in vitamin C. In return, the seeds of the peppers are distributed by the birds, as they drop the seeds while eating the pods or the seeds pass through the digestive tract unharmed. This relationship is theorized to have promoted the evolution of the protective capsaicin. It is interesting to note that the chemical used to give an artificial grape flavoring to food items such as grape soda does have a similar effect on birds as capsaicin has on humans. Heat level = 8.
