Things Worth Noting
Turritopsis dohrnii, the immortal jellyfish, can reverse its life cycle from adult medusa back to a juvenile polyp, essentially achieving biological immortality. Found in temperate and tropical waters, this jellyfish can reset its development in response to stress, such as starvation or injury, through a process called transdifferentiation. Its ability to avoid aging and regenerate […]
Sea urchins, long considered brainless animals with just a simple decentralized nervous system (five radial nerves, a circumoral nerve ring, and a diffuse nerve net), are actually one giant distributed brain. A major 2025 study using single-nucleus RNA sequencing on juvenile purple sea urchins revealed that over 60% of their cell types are neuronal, expressing […]
Beneath the icy expanse of the Southern Ocean, hidden in the abyssal depths of Antarctica, lie some of the planet’s most extraordinary geological and biological wonders: hydrothermal vents. These underwater geysers, fueled by tectonic activity and volcanic heat, spew mineral-rich fluids into the frigid waters, creating oases of life in an otherwise barren seabed. Discovered […]