Preserving life in all formations
I’m writing this on a peaceful Sunday afternoon with the warble of magpies providing a suitable musical accompaniment to my thoughts. It’s two weeks since we returned from exploring Western Australia – the big State! And it is big – and in its vastness we were introduced to a range of extraordinary and interesting entities that capture some of the history of our planet.
Perhaps the most remarkable of these was our viewing of the stromatolites at Hamelin Pool, Shark Bay. These ancient marine wonders are intriguing and unique rock formations – fossils that have developed over some 3.43 billion years and indicate to palaeontologists the earliest forms of life on Earth. Though they appear inanimate, hidden within is vital growth! Sometimes described as living rocks, stromatolites are formed from microbial communities (cyanobacteria) that reside therein and continue, extraordinarily, to build them. It is believed that these communities, through the process of photosynthesis, were responsible for originally increasing the level of oxygen in Earth’s atmosphere sufficiently to enable life as we know it to develop.