My colleague and I have published a new study of cactus flowers which may help explain the conundrum. For more than a century ...

Scientists discover that fast-changing cactus flowers, not size or pollinators, are behind the rapid evolution of new cactus species.

Add Yahoo as a preferred source to see more of our stories on Google. With it coming in eye-catching bright pink, red, purple or white hues, it's the perfect way to brighten up a room over the darker ...

The cactus on your windowsill may grow slowly, but new research shows that cacti are surprisingly fast at creating new ...

Behind the stillness of desert landscapes, cacti appear to be changing in unexpected ways. The cactus on your windowsill may ...

Add Yahoo as a preferred source to see more of our stories on Google. Denise Hasse / Getty Images Christmas cactuses bloom in winter, when the days grow cool and short. While low light levels trigger ...

Add Yahoo as a preferred source to see more of our stories on Google. A cactus on a shelf next to a toy cactus. Cacti are known for their prickly exterior. But not so much for their flowers - except ...

This cactus does not have any thorns, you see. It is a special breed of cactus called prickly-pear. It will blossom with yellow flowers and give pear-like fruits. You have to share the flowers and ...