Komodo dragon collision between Australia and Southeast Asia allowed these larger varanids to move back into what is now the Indonesian archipelago, extending their range as far east as the island of Timor. The Komodo dragon was believed to have differentiated from its Australian ancestors 4 million years ago. However, recent fossil evidence from Queensland suggests the Komodo dragon actually evolved in Australia before spreading to Indonesia. Dramatic lowering of sea level during the last glacial period uncovered extensive stretches of continental shelf that the Komodo dragon colonised, becoming isolated in their present island range as sea levels rose afterwards. Extinct Pliocene
Helgoland Habitat Helgoland Habitat The Helgoland underwater laboratory (UWL) is an underwater habitat. It was built by Dräger in Lübeck, Germany in 1968 for the Biological Institute Helgoland, and was the first of its kind in the world built for use in colder waters. It is named after the island Helgoland. The habitat allowed divers to spend several weeks under water using saturation diving techniques. The scientists and technicians would live and work in the laboratory, returning to it after every diving session. Only once they had reached the end of their stay did they decompress in the UWL itself, being able