New Zealand's 'Living Dinosaur' -- The Tuatara -- Is Surprisingl...

Duck-billed Dinosaurs Outgrew Predators To Survive
With long limbs and a soft body, the duck-billed hadrosaur had few defenses against predators such as tyrannosaurs. But new research on the bones of...

Genetic Mutation Linked To Walking On All Fours
What are the genes implicated in upright walking of humans? The discovery of four families in which some members only walk on all fours may help us...

When Evolution Tends To Maximize The Diversity And Functioning...
Evolution can lead to greater biological diversity, and particularly to improvements in the functioning of ecosystems. New research shows evolution...

Study questions 'cost of complexity' in evolution
Higher organisms do not have a "cost of complexity" -- or slowdown in the evolution of complex traits -- according to a report by researchers at Yale...

Setting-Up a Small Observatory: From Concept to Construction...
This is the book to tell the intermediate-level amateur astronomer what he needs to know about observatories. It draws on the author’s practical...

Sky & Telescope's Mirror-Image Field Map of the Moon

Oregon Scientific BAR888RA Multi-Channel Weather Forecaster...
This unit features an indoor & outdoor thermometer that receives signals from up to 3 wireless remote sensors. These sensors can operate up to 90...