Every child knows what a tiger looks like: orange fur with black stripes. But did you know that many animals - including the big cats themselves - perceive tigers as green? PETBOOK editor and ...
The scale invariance in branch diameter dictates how much smaller a limb should be as it branches and how much investment a ...
Spring has sprung! As winter has started fading away and the days have grown longer, nature is beginning to awaken for spring ...
From wafting tar pits and smells of the beach to native plants and a chocolate factory, our readers smelled Los Angeles and ...