Salmon are coming back to their ancestral homes after the demolition of four dams on the Klamath River, which flows along the California-Oregon border.
Sunflowers are amazing. You can benefit from all their parts. They offer us food, oil and biodiesel and they even help the land recover after nuclear disasters.
Pufferfish have a cool but deadly defense. They swell and are covered in sharp spines. They also contain a toxin much stronger and faster-acting than cyanide.
Crows are some of the most intelligent animals in the world. They are also sociable birds that create their own gangs, show empathy and love to have fun!
The axolotl is a spectacular, forever-young amphibian. It never loses its tadpole tail and can regenerate not only its limbs or tail, but also its organs!
Cristina Ortiz - based in Granada, Spain - is EarthSky's defender of animals with her weekly "lifeform" videos at EarthSky YouTube. Discover the most fascinating facts about all the beings with whom we share Earth. Are you ready for the adventure? Cristina has been an EarthSky.org editor since 2021. She has a master’s degree in translation and interpreting, specializing in science and technology. "Since I was a kid," she says, "I could feel that passion for science and communication."