Salutation



Let's hear it for 3.8 billion years of simple cells (prokaryotes).

Let's hear it for 3.4 billion years of stromatolites demonstrating photosynthesis.

Let's hear it for 2 billion years of complex cells (eukaryotes).

Let's hear it for 1 billion years of multicellular life.

Let's hear it for 600 million years of simple animals.

Let's hear it for 570 million years of arthropods (ancestors of insects, arachnids and crustaceans).

Let's hear it for 550 million years of complex animals.

Let's hear it for 500 million years of fish and proto-amphibians.

Let's hear it for 475 million years of land plants.

Let's hear it for 400 million years of insects and seeds.

Let's hear it for 360 million years of amphibians.

Let's hear it for 300 million years of reptiles.

Let's hear it for 200 million years of mammals.

Let's hear it for 150 million years of birds.

Let's hear it for 130 million years of flowers.