Creosote is a build-up of particles in your chimney from wood smoke. As the wood burns in a fireplace, the smoke starts to cool, and by-products of the fire will begin to condense and build up in ...

HABITAT: The desert tortoise lives in valleys, flat areas, and dry alluvial fans and washes. In the Mojave and Colorado deserts, tortoises are generally found below 4,000 feet in Joshua tree-Mohave ...

Natural selection isn't just something that happens to organisms, their activities also play a role, giving some species – including humans – a supercharged ability to evolve ...

HABITAT: Ideal habitat for desert kit foxes are flat, arid desert lands with the fewest roads and dominated by flora such as creosote bushes and white bursage desert scrub or mixed desert salt scrub.