Lachlan McDonald

Lachlan McDonald

Katherine, Northern Territory, Australia / I have strong interests in Australian History and Wildlife; also World Affairs, Science, Space... heaps of stuff.
Lachlan McDonald
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65 million years ago a great catastrophe happened that killed a large number of animals. All the dinosaurs perished except for one branch. Winged dinosaurs had survived and these were to become our birds. With the absence of large predator dinosaurs, smaller ground dwelling animals started to multiply. These were the first mammals.

65 million years ago a great catastrophe happened that killed a large number of animals. All the dinosaurs perished except for one branch. Winged dinosaurs had survived and these were to become our birds. With the absence of large predator dinosaurs, smaller ground dwelling animals started to multiply. These were the first mammals.

375 million years ago many fish grew limbs and learnt to breath air, these are known as amphibians. In time reptiles came into being and this includes the dinosaurs. Now all sorts of other land animals were evolving.

375 million years ago many fish grew limbs and learnt to breath air, these are known as amphibians. In time reptiles came into being and this includes the dinosaurs. Now all sorts of other land animals were evolving.

450 million years ago some of these creatures moved onto the land. Now as land creatures they eventually morphed into what we know today as “Insects”, these developed wings and started to fly. Of those remaining in the water some developed further into fish with backbones and crustaceans like crabs.

450 million years ago some of these creatures moved onto the land. Now as land creatures they eventually morphed into what we know today as “Insects”, these developed wings and started to fly. Of those remaining in the water some developed further into fish with backbones and crustaceans like crabs.

All life on Earth began in the sea some 3,000 million years ago, when molecules came together to form cells, such as bacteria. In time these cells changed into basic groups such as algae and sponges; later more diversified groups that resemble sea creatures appeared.

All life on Earth began in the sea some 3,000 million years ago, when molecules came together to form cells, such as bacteria. In time these cells changed into basic groups such as algae and sponges; later more diversified groups that resemble sea creatures appeared.