естествознание

[b]What in the world is going on up there? [/b] Look up! It’s a bird; it’s a plane; it’s a Polar mesospheric cloud! When you look to the sky, do you wonder why the Sun is so bright or why the clouds are white or why the sky is blue? Then, [i]Weather …

Gardens make a significant contribution to the amount of urban green space and are the main contributors to urban biodiversity. Birds are one of the most visible components of this urban biodiversity, and many of us enjoy attracting wild birds into o…

Mammals in the British Isles looks at the influences on their numbers and distribution, both now and in the past, examines aspects of their biology with emphasis on function and physiology, and concludes with an account of relationships with man.This…

"It was a different crow, but the same crow, you understand? Because there is only one Crow. God made them all black and identical-looking because there is no reason for them to be different birds. That's why you can never kill a crow, beca…