when did amphibians begin to colonize land as the first terrestrial vertebrates
Vertebrate land invasion The aquatic to terrestrial transition of vertebrate organisms occurred in the late Devonian era and was an important step in the evolutionary history of modern land vertebrates. The transition allowed animals to escape competitive pressure from the water and explore niche opportunities on land. Fossils from this period have allowed scientists to identify some of the species that existed during this transition, such as Tiktaalik[1] and Acanthostega.[2] Many of these species were also the first to develop adaptations suited to terrestrial over aquatic life, such as neck mobility and hindlimb locomotion.
History of New Zealand New Zealand was originally settled by Polynesians from Eastern Polynesia. Genetic and archaeological evidence suggests that humans emigrated from Taiwan to Melanesia and then travelled east through to the Society Islands; after a pause of 70 to 265 years, a new wave of exploration led to the discovery and settlement of New Zealand.[4] The most current reliable evidence strongly indicates that initial settlement of New Zealand occurred around 1280 CE.[4] Previous dating of some Kiore (Polynesian rat) bones at 50 â€“ 150 CE has now been shown to have been unreliable; new samples of bone (and now also of unequivocally rat-gnawed woody seed cases) match the 1280 CE date of the earliest archaeological sites and the beginning of sustained, anthropogenic deforestation.[5]