A new study conducted in Florida has given scientists reason to believe that hammerhead sharks may have vision comparable to that of humans. The researchers measured electrical activity in the eyes of half a dozen sharks from three different hammerhead species. They then put electrodes under the sharks' corneas and recorded electrical activity while shining lights in horizontal and vertical arcs around each eye. Compared to normal-headed sharks, the hammerheads had three times the visual overlap — that's what creates stereo vision and depth perception in animals with eyes that face forward. This, of course, helps them be faster and more efficient at hunting prey. But there's a catch: because their eyes are so far apart, hammerheads have these giant blind spots right in the middle of their head. As study leader Michelle McComb put it in an interview with National Geographic:
There's actually been anecdotal claims by divers that they see little fish schooling right in front of the hammerheads' heads. It's like the fish are swimming by and saying, Ha, ha, ha, you can't see me!
After years of speculation and wrangling over his remains, Kennewick Man turns out to be closely related to contemporary, local Native Americans after all. Discovered near Kennewick, Wash., in 1996, the skeleton ended up in a tug of war between tribes in the pacific northwest who wanted to bury the remains, and scientists who wanted […]
The European Organization for Nuclear Research, or CERN, has been releasing portions of its research to the public for years. This week’s massive 300 terabyte dump of Large Hadron Collider (LHC) data is the biggest yet by a long shot — and it’s all out there, open source, free for the exploration.
Isn’t it about time to stretch what your Mac can do? I mean, you’ve got plenty of great programs now…but don’t you think you could use some new tools to get your creative, analytical and organizational juices really flowing? It’s spring, so we cleaned up a whole bunch of super-cool apps lying around and packaged […]
In the world of app development, there’s no greater arena to find success than with Android users. About 80% of the smartphones in use today worldwide operate on the Android operating system, so if you build a great app that Android users love, you’re an international rock star. You’ll be able to make sure your […]
Unless you’re a programmer or webmaster, the term SQL probably doesn’t mean much to you. But for those looking to understand more about how and why the web works the way that it does, know this – SQL and its process of managing and presenting large data sets is everywhere…and it’s the most in-demand programming […]