Adventure Ausrama Blog

The crowd wave at sporting events in not an entirely human thing. Prairie dogs do the "jump-yip". This keeps others involved and tells an individual how alert others are. It begins like the human wave. One or two will start doing it and at first it is ignored. Then it takes on a mind of its own and soon all are doing it. The wave is just as noisy as the human wave with loud yips coming from everywhere. Prairie dogs use their whole body to make the sound. They raise there front legs then lower them with a "wee-oo" call in sequence. Like humans prairie dogs live in towns. It was believed to be a warning call of the presence of predators, but prairie dogs continue the wave whether a predator is there or not. It is a social activity to test the alertness of others. If fellow animals do not respond a prairie dogs will not forage very much. On the other hand, if everyone is at it, they assume they can eat in safety. Somehow they are making a judgement about...

Natural disasters on this planet cause human pain and suffering. This includes financial loss from destroyed properties. The science in forecasting such events is still developing. Tornadoes are very unpredictable. Hurricanes move slower; yet the amount of damage is still an unknown quantity. The whole history of the US has included repeated "attacks" by hurricanes and tornadoes. Tracking of these events began in 1873 with the first hurricane warning by the U.S. Army Signal Corps. Advances were made in understanding flooding from storm surges. This did not prevent the most destructive hurricane of 1900 hitting without warning killing 12,000 citizens. In 1943 a pilot was sent into the eye of a hurricane. This marked the beginning of an intensive period of study into natural weather events. Ultimately, hurricane forecast models were developed. The 1960s saw the first use of satellites. In 1975 the Saffir-Simpson scale rating hurricane strength of one to five was fo...