Nearly 350 species of fish have specialized anatomical structures that generate and detect electrical signals. Underwater, where light is scarce, electrical signals offer ways to communicate, navigate, find, and sometimes stun prey. But how do these fish produce electricity? And why? Eleanor Nelsen illuminates the science behind electric fish.
2016 I took a plane from Vienna, Austria to California to hike the Pacific Crest Trail – a 2650 miles footpath from Mexico to Canada. This is my 5-month journey – with all ups and downs.
For the last 15 years, Joseph Keter has been rescuing, caring for and returning injured and abandoned animals — mainly orphans whose mothers have died — to the wild. From lions to cheetahs and buffalo to gazelle, Joseph has cared for some of Africa’s most iconic animals. His days may be long and difficult, but when it’s life or death for baby animals on Kenya’s Lake Naivasha, it’s all worth it.
A new scientific model has discovered what actually happened to the earth after the asteroid impact that killed the dinosaurs.
During the warmer months, especially at night during the full moon, horseshoe crabs emerge from the sea to spawn. Waiting for them are teams of lab workers, who capture the horseshoe crabs by the hundreds of thousands, take them to labs, harvest their cerulean blood, then return them to the sea. Why? Elizabeth Cox illuminates the incredible properties of horseshoe crab blood.
The amazing future of oceanographic discovery, featuring biofluorescent sharks, deep sea mining, seafloor vents, ROV’s (remote operated vehicles), and the disturbing effects of ocean acidification.