Shedd Aquarium / Brenna Hernandez
NOAA Alaska Fisheries Science Center
Wakasa History and Folklore Museum, Fukui, Japan /
By Marc Lallanilla LiveScience Every animal with bones has blood with hemoglobin, which binds with oxygen and makes the blood appear...
Bent Christensen / AP file /
Christian Mehlfuehrer / UC Davis /
Sukree Sukplang / Reuters /
Researchers have built a robotic fish that has all the right moves — it can go forward and backward, like other underwater robots, and...