The
DNA of a rare, sexually transmissible cancer has been decoded. It arose
in a single, husky-like dog 11,000 years ago and has survived through
millions of genetic changes. The only other known transmissible cancer
is the facial cancer currently devastating our Tasmanian devils.
This
is fluorite, a widely occurring mineral found in parts of China,
Europe, and North America. Dubbed "the most colourful mineral in the
world", it's commonly found in shades of purple, blue, green, yellow,
and more rarely in pink, red, white, brown, and black.
This
amazing shot by German photographer Martin Rietze captures the moment
when a bolt of lightning flashed in an erupting volcano in Japan last
year. The volcano, named Sakurajima, has been erupting almost constantly
since 1955.
