Unlike animals, plants don’t need a male and a female because their flowers have both male parts and female parts. Pollen in plants is like sperm in animals. It comes from the male part of the ...

This observation is explained by another key feature of stem cells that is shared between plants and animals, as explained below. The ability of stem cells to constantly generate new tissues has ...

Only six years old at the time, I was at first put off by these garish plants. Such strange and vibrant flowers seemed out of place among the respectable beans, peppers, spinach, and other ...