New research goes to the heart of our evolution
Researchers have discovered a 380-million-year-old heart – the oldest ever found – alongside a separate fossilised stomach, intestine and liver in an ancient jawed fish, shedding […]
Researchers have discovered a 380-million-year-old heart – the oldest ever found – alongside a separate fossilised stomach, intestine and liver in an ancient jawed fish, shedding […]