Stacker compiled a list of 25 animal evolution questions and answers to explain some of those mysteries, from why giraffes have such long necks to how ants can carry 50 times their body weight.

How gas prices have changed in Des Moines in the last week.

We want to know what our readers like, so we can make sure we're putting out the best content possible. Help us help you by taking this 3-minute survey!Where in Iowa do you live?<p>We want to make sure we're delivering the most relevant possible news to...