Scientists discovered that animal poop triggered the evolution of life on earth

A large coprolite of a carnivorous dinosaur found in Harding County, South Dakota, US. Image Credit: Poozeum/Wikipedia Around 540 million years ago, the biological landscape of Earth went through a huge transformation called the Cambrian explosion. During this era, the ancestors of most modern animal groups began to appear, depicting a massive surge in biodiversity. The traditional scientific explanations for this evolution focus on rising oxygen levels or protective ozone layers, but a new perspective highlights a unique biological byproduct which is ‘animal waste.’Research published in the journal 'Trends in Ecology and Evolution' suggests that the emergence of sophisticated digestive systems led to a huge increase in faeces. This new abundance of organic matter acted as a powerful catalyst, which altered the chemistry of the ancient oceans. By transporting vital nutrients from the surface to the deep seafloor, this early animal waste helped in creating a stable, nutrient-rich environment necessary for life to flourish and diversify.How animal poop changed the life beneath the oceans 540-million-years agoBefore the arrival of complex animals, the oceans were very different places...