Complex sentence: Thus, the Australian terrestrial elapids are'hydrophiines', though not sea snakes, while it is believed that Laticauda and the'true sea snakes' evolved separately from among the Australasian land snakes.
Split into simpler sentences: Thus, the Australian terrestrial elapids are technically'hydrophiines', although they aren't sea snakes. It is believed that Laticauda and the' true sea snakes' evolved separately from Australasian land snakes.