Archelaus (philosopher) Archelaus (philosopher) Archelaus (; ; fl. 5th century BCE) was an Ancient Greek philosopher, a pupil of Anaxagoras, and may have been a teacher of Socrates. He asserted that the principle of motion was the separation of hot from cold, from which he endeavoured to explain the formation of the Earth and the creation of animals and humans. Archelaus was a philosopher of the Ionian School, called "Physicus" from having been the first to teach natural philosophy at Athens. This statement of Diogenes Laërtius, is contradicted by Clement of Alexandria, but the two may be reconciled by supposing that Archelaus
Tub gurnard May to August in Europe, ranging to year-round in Africa. Tub gurnard The tub gurnard, Chelidonichthys lucerna (also "C. lucernus", "Trigla lucerna", "T. corax") is a species of bottom-dwelling coastal fish with a spiny armored head and fingerlike pectoral fins used for crawling along the sea bottom. The tub gurnard is a reddish fish with blue pectoral fins. It is a coastal species, prevalent in the Mediterranean Sea (especially the western Mediterranean and the northern Aegean) and the Atlantic Ocean from Norway to Cape Blanc. It is also present, though less common, in the Black Sea, the southern Baltic and