Article on examples of cross-species breeds -- a zorse (horse + zebra), a liger (lion + tiger), etc.
"While one might think that these oddities are examples of some kind of moral breakdown in the animal kingdom, it turns out that hybridization among distinct species is not so rare. Some biologists estimate that as many as 10 percent of animal species and up to 25 percent of plant species may occasionally breed with another species. The more important issue is not whether such liaisons occasionally produce offspring, but the vitality of the hybrid and whether two species might combine to give rise to a third, distinct species."
A video for kids discussing life on earth looked at in numbers, e.g., how many of each species, the heaviest biomass by species, by individual organism, etc. A new series.
Editor's note: An extraordinary number of species-from squid to lizards to humans-engage in play. But why? In this article, adapted from Dr. Sam Wang and Dr. Sandra Aamodt's book Welcome to Your Child's Brain: How the Mind Grows from Conception to College (Bloomsbury USA, 2011; OneWorld Publications, 2011), the authors explore how play enhances brain development in children. As Wang and Aamodt describe, play activates the brain's reward circuitry but not negative stress responses, which can facilitate attention and action. Through play, children practice social interaction and build skills and interests to draw upon in the years to come.
The Tree of Life Web Project is a collection of information about biodiversity compiled collaboratively by hundreds of expert and amateur contributors. Its goal is to contain a page with pictures, text, and other information for every species and for each
""Vanished" is a two-month-long game, which debuted the week of April 4 and stems from an initial scenario revealed in recent video messages on the site. The premise is that people living in the future have contacted us in the present, to answer a question: What event occurred between our time and theirs that led to the loss of civilization's historical records? Students must decode clues in hidden messages, and in response find and provide information about Earth's current condition, such as temperature and species data, to help people in the future deduce what wound up happening. "
Group items tagged 
