Dolphin's Discovery Channel

...Although the homo sapiens is by far the species that most widely manipulates materials in it's environment to create tools, there is a curious aspect to this inventiveness. The male creates or brings home a tool with the intent of using it to say, repair their habitat. The female however, is the most creative of all, for she has figured out more ways to use the tools for new and unique purposes the original tool maker never imagined.
Take this mother homo sapiens for example. She is using two tools, normally used by her species to prepare food, to clean up after her young. The younglings have playfully smashed what is called a boiled egg, shell and all, and thrust it into a hole. This hole is normally used to drain water out of the dwelling. This might not seem important to the dolphin, but remember that the homo sapiens cannot live in an underwater habitat.
Since the young had previously dropped a spherical plaything into the hole, the smashed food completely plugged the orifice, causing water to build up in a receptacle immediately surrounding it, and threatening to overflow into the dwelling. The mother quickly remembers all the objects in her habitat with her astounding visual memory, and mentally calculates their possible use in the given circumstances. She then retrieves these two tools normally used in food preparation. They have just the shape and consistency to scoop up the offending substance, thus unplugging the vital hole. The male of the species most likely would simply avoid the hole and close off the water supply into the habitat until he dehydrates and the young would insist on letting the water run in continually and try to adjust to an underwater habitat. It is apparent that the species would not survive without the adult female.