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Isopentane, also called methylbutane or 2-methylbutane, is a branched-chain saturated hydrocarbon (an alkane) with five carbon atoms, with formula C 5 H 12 or CH(CH 3) 2 (C 2 H 5). Isopentane is a volatile and flammable liquid.
This page alphabetically lists some known plant species occurring in the US state of Pennsylvania. Currently about 2,100 native and 1,300 non-native plant species are known in Pennsylvania. [1] According Pennsylvania Department of Conservation and Natural Resources, the known species make up 37% of Pennsylvania's total wild plant flora.
Flamingoes are gregarious wading birds, usually 3 to 5 feet (0.9 to 1.5 m) tall, found in both the Western and Eastern Hemispheres. Flamingos filter-feed on shellfish and algae. Their oddly shaped beaks are adapted to separate mud and silt from the food they consume and, uniquely, are used upside-down.
Lisa Ann Fanning recently photographed a roseate spoonbill near the Henry Hudson Trail. The birds are common in coastal Texas, southern Louisiana and Florida, but rare in New Jersey.
A colony of G. brachycera at Losh Run, in Perry County, Pennsylvania was found to be 6,500 feet (2,000 m) in extent when surveyed. If this colony grew clonally from a seed deposited along the Juniata River at the rate of 15 centimetres (5.9 in) per year, it would be about 13,000 years old, the oldest living organism in the United States and ...
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All of the plants Lewis collected in the first months of the Expedition were cached near the Missouri River to be retrieved on the return journey. The cache was completely destroyed by Missouri flood waters. Other collections were lost in varying ways, and we now have only 237 plants Lewis collected, 226 of which are in the Philadelphia ...
A man found frozen in a Pennsylvania cave in 1977 has finally been identified, closing the book on a nearly 50-year-long mystery. The Berks County Coroner’s Office identified the remains of the ...