Top 10 unbelievable historical concurrencies. There are more than 1,450 species of bamboo plants. Of these, there are two basic types: those that spread and those that clump. Spreading bamboo, also called running bamboo, will cover any distance up to 100 feet (30.5 m) within a relatively short time period.
yawning (yanâ²ing) yawning An involuntary and often infectious act of slow, deep inspiration accompanied by an almost uncontrollable desire to open the mouth widely.
The earliest theory of yawning, laid forth by Hippocrates, suggested that the action sucks in good air while pushing out bad air. That isn't too far off from the theory that dominated the last century, which is that yawning delivers an extra hit of energy-boosting oxygen while helping usher out carbon dioxide.