We're used to thinking of sea lampreys as a bad thing, an invasive species. But that's in the Great Lakes. In New England streams, the lampreys are native and necessary to ecosystem health.
This video features healthy sea lampreys spawning in a Massachusetts stream. The cool part that you should be watching for: Lampreys picking up stones with their sucker mouths and moving the rocks from one spot in the stream to another. Essentially, they're digging — moving and discarding stones to leave behind 6-inch-deep furrows in the rocky stream bed, which is where the lampreys lay their eggs. They've been known to move stones as big as a human fist.
What's more, this behavior isn't just good for the lampreys and their sex lives. It also improves the health of stream ecosystems.
Sea lamprey spawning activities restore and enhance streambed structure that benefits many other species. Some minnow species use sea lamprey nests for their own spawning activities and salmonids find the loosened and cleaned substrate desirable as redd building sites and as refugia for some life stages of their offspring. Improved water flows through loosened substrate are also beneficial for biologically important aquatic insects and other invertebrates.
Great work, lampreys!
NASA today announced that astronomers studying data from NASA’s Great Observatories have found the best evidence yet for “cosmic seeds in the early universe that should grow into supermassive black holes.”
Could you recover a murder victim’s last sight of their killer by extracting it from the retina? Little more than a century ago, forensic scientists thought it might be possible. After all, in 1877 physiologist Wilhelm Friedrich Kühne was able to develop a simple image from an albino rabbit’s dissected eyeball. (Above, the two images […]
Backed by huge donations from vitamin companies, the American Association of Naturopathic Physicians is pushing to get naturopathic medicine recognized and regulated in all 50 US states, paving the way to receiving public funds in the form of Medicare reimbursements.
If you’ve got a killer app idea, but don’t have the technical expertise to pull it off, get a crash course in all things app development with the Comprehensive Android Development Bundle, now over 90% off in the Boing Boing Store. Across 83 hours of training, you’ll learn to develop for the world’s most popular mobile OS, mastering […]
Jared Sinclair developed the RSS reader app Unread, which made $10,000 in its first 24 hours on the iOS market. And we’ve all heard the story of Flappy Bird developer Dong Nguyen, whose creation was reportedly earning $50,000 a day at the height of its 2013 explosion. While those are rare examples, they’re also testament to the […]
If you or your company’s IT system are besieged by black hat cyber attacks, an ethical hacker might be all that stands between crippling damage and a company’s long-term prosperity. It’s no wonder that the market for IT security specialists is exploding. Certification is the key – so learn the tenets of ethical hacking and get […]