Wildlife biologists use population surveys, harvest data, and models to adjust hunting seasons yearly, keeping animal ...

For tens of thousands of years, humans have observed the minute seasonal changes that make or break a harvest. Now, for the first time, satellites have caught up. A study published this week in Nature ...

44 degrees, or about half way between its extremes, and this angle is very slowly decreasing in a cycle that spans about 41,000 years. 5 degrees relative to its orbital plane around the sun, is the ...