The Cops Don't Care About Violent Online Threats. What Do We Do Now?

I. "Hey Anna, do you like pizza?" I was just sitting down to dinner one evening this past November when I looked through some new Twitter notifications on my phone. My night, I realized regretfully, was about to get very, very stupid. » 1/29/15 3:57pm Today 3:57pm

Why Do Birds Have ZW Sex Chromosomes Instead Of XY?

Your sex characteristics were determined by X and Y chromosomes, same as most other creatures from humans to fruit flies. So why do birds and butterflies have ZW chromosomes instead? And more importantly, why does ZW produce a female bird while ZZ produces a male? » 1/29/15 11:23am Today 11:23am

Get a Free 2-Weeks of Crunchyroll Anime: Stream the Full Catalog Ad-Free

Crunchyroll, one of the top destinations for current and classic anime, is offering Kotaku readers a free two-week trial of their Anime Membership. In addition to streaming their entire anime catalog ad-free, you'll get access to the anime simulcasts - getting the latest anime episodes the same day they're released in… » 1/28/15 3:09pm Yesterday 3:09pm