Barreleye Fish: Transparent Head Discovery
Barreleye fish have completely transparent heads showing their green barrel-shaped eyes that rotate to look up or forward. Expert guide to deep sea's weirdest fish.
November 2025
April 2025
Glass Frog: Unique Biology and Conservation
Everything about the glass frog: Centrolenidae family biology, the transparent belly skin that reveals a beating heart and visible organs, the 2022 red blood cell pooling discovery, canopy life, male egg guarding, and the conservation threats facing rainforest glass frogs.