500 years ago, a deadly epidemic known as 'cocoliztli' killed nearly 80 per cent of the Aztec population.
Known as the ancient Beringians, this new group split from the founding population 20,000 years ago.
Scientists studying apes in northern Sumatra have identified a small population of an entirely new species.
A new study has linked a prehistoric population of mammoth hunters with some of today's tallest people.
Scientists have identified a form of synaesthesia that may affect more than one fifth of the population.
Researchers in Brazil have warned that some vampire bat populations have started targeting humans.
Authorities have warned that this invasive species of hornet could decimate local bee populations.
After years of poaching, the world's population of northern white rhinos has been reduced to three.
Author Logan Streondj has calculated the point at which robots will outnumber Earth's human population.
Wildlife authorities in the 1950s attempted a unique solution to the problem of beaver overpopulation.
The world's most endangered species of cat has seen a significant population increase in recent years.
The UN's latest estimates indicate that the Earth's population will grow even faster than expected.
Scientists have predicted that a cataclysmic series of events could occur within the next 30 years.
Over half of the world's remaining saiga antelope population has dropped dead within the last few weeks.
A new census has revealed that the number of giant pandas living in the wild has risen by 17 percent.
A new study has revealed that our planet's population is even more out of control than we realize.
A new study has warned that Japan's whole population may be at risk from a huge volcanic eruption.
New predictions suggest that the population will rise by another 4 billion by the end of the century.
As much as half of the population of the United States believes in at least one conspiracy theory.
A new study has calculated how many people it would take to viably populate another planet.