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These are just a couple of the cases that demonstrate what has been happening around the world. While the cases of disappearing frogs may be natural (frog populations are naturally erratic), because so little is known about their ecology, scientists can only speculate about the causes. Unfortunately, most of them originate with humans.
There are man-made chemicals in the environment that pass easily through the frogs’ skin. Their moist skin may also make them sensitive to increases in ultraviolet radiation coming through the earth’s thinning ozone layer. In the spring, melting snow packs may lead to sharp increases in the acidity of ponds where frogs lay their eggs. In industrial regions, acid rain may be leaching heavy metals into the water. In agricultural areas, pesticides and herbicides end up in ponds and small pools along streams and rivers. Other contributing causes include habitat destruction as forests and wetlands are cut, drained, or filled. Frogs are also lost as collectors look to provide food at fancy dinner tables or specimens for education and research.
While we might dismiss the loss of a few species of frogs as inconsequential, to ignore the causes allows them to persist and build. Like other indicator species, frogs are like the canary in a coal mine. They serve as a warning signal to the dangers of harmful changes in our environment. Who knows what the future holds for other animals and for our own species?
Winthrop, citing a distinction between the king’s and Best winter vacations in US Connecticut’s militias, is able to forge a compromise. Connecticut will retain its charter and Best winter vacations in US its liberties, and 120 Connecticut men will serve under New York’s governor. Connecticut continues to rely on its charter until several decades after the War for Independence. 1701 The General Assembly establishes Connecticut’s first institution of higher education in Killingworth (now Clinton), supplying it with ten ministers as trustees and providing 120 pounds a year to support it. The college trains ministers in orthodox doctrine, but it also trains colonial leaders in classical university subjects, following the British model. In 1707, the college will move to Saybrook; in 1716, it will move to New Haven. In 1718, it will be renamed Yale College, following a large donation by Elihu Yale, a wealthy Englishman.
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