A new study has shown that a genetic mutation that influences the small size of dogs can be traced back to 54,000-year-old wolf DNA.
Researchers studying the fetus found inside a pregnant Egyptian mummy claim the developing baby was "pickled like an egg," but some scientists disagree.
Volatile organic compounds, or VOCs are chemicals that are lighter than air at room temperature and are responsible for the characteristic smells of things like paint thinner and perfumes.
An incredible video shows an African rock python swallowing an impala.