Sympatric speciation is the formation of two or more descendant species from a single ancestral species all occupying the same geographic location. Often-cited examples of sympatric speciation are found in insects that become dependent on different host plants in the same area.
Rice noodles are a type of semi-transparent pasta made from rice flour and water. Most are very long and thin, but you can also find flat rice noodles, as well. These noodles cook notably fast and can actually turn to mush if cooked for too long, so it's important to know how to cook them properly.
These are of paramount importance â pad thai is a noodle dish, after all, and as Punyaratabandhu observes: When the noodles are badly cooked, they invariably drag everything else down with them.. You need what are often called rice sticks â dried thin, flat noodles known as sen lek, 3-5mm wide.