) experienced just one continent named Pangaea surrounded by the Panthalassa ocean, and as such the inlands have been pretty dry and arid. The remaining animals, The nice vast majority—comprising some 29 phyla and about one million species—type the Bilateria clade, that have a bilaterally symmetric body prepare. The Bilateria https://animals08529.anchor-blog.com/14925566/what-does-animal-mean