Portuguese Man o' War (Physalia physalis)
The Portuguese man o' war is not a jellyfish but a colonial siphonophore. Discover its 50 m tentacles, powerful venom, and complex colonial anatomy.
October 2026
October 2025
Jellyfish: The Ocean's Brainless Rulers
Expert-written guide to jellyfish biology, the immortal Turritopsis dohrnii, lethal box jellyfish venom, giant lion's mane jellyfish, jellyfish blooms, GFP Nobel Prize research, and the growing jellyfish food industry. Covers anatomy, species profiles, ecological impact, and medical applications.