From a lion's mane jellyfish in the Arctic Ocean to explorers preparing to dive deep into the dark waters of the Frasassi Caves in Italy, National Geographic's 2023 Pictures of the Year is a dynamic ...

Multiple massive, rare jellyfish washed up on the Texas coast recently, surprising some beachgoers and feasting on a smaller jellyfish species. Jace Tunnell, the director of community engagement at ...

In the ethereal blue glow of the water, a huge shape swept toward them. Around 30 feet long, with four billowing arms and a domed head, the creature was larger than the tourists’ personal submersible.