Oxygen Rollercoasters in Ancient Seas: How Daily Fluctuations Fueled Evolutionary Leaps
Lund, Sweden — Imagine navigating a world that offers boundless energy by day but plunges into a suffocating void by night. This stark reality wasn’t part of a dystopian fantasy but the daily challenge faced by Earth’s early animals over half a billion years ago. According to recent findings from researchers at Lund University, these dramatic fluctuations in oxygen levels could have been a pivotal force behind the rapid evolutionary diversification known as the Cambrian …