How Did Ancient Civilizations Keep Cool before AC? Temperatures have soared in the Seattle area in recent weeks, prompting many to spring for their first central air conditioning system, upgrade an aging AC system or schedule maintenance to keep their system in tip-top shape throughout the hot months.
Pangasius is a genus of medium-large to very large shark catfishes native to freshwater in South and Southeast Asia. The term pangasius is sometimes used to specifically refer to the commercially important basa fish, P. bocourti.angasius (Pangasius) was the final subgenus and had no diagnostic features, containing the remaining species. These subgeneric classifications were confirmed in 2000 except for Neopangasius, found to be polyphyletic and to be part of Pangasius (Pangasius), thus leaving three subgenera.
Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and it began to break apart about 175 million years ago. In contrast to the present Earth and its distribution of continental mass, much of Pangaea was in the southern hemisphere and surrounded by a superocean, Panthalassa. Pangaea was the most recent supercontinent to have existed and the first to be reconstructed