Watch a sea anemone defend itself against a predatory starfish in this video. The sea anemone detects the starfish nearby, ...

One starfish species doesn't seem to want to grow up. Scientists have discovered a disc-shaped animal in the deep Pacific Ocean whose body plan is stuck in the juvenile phase of the life cycle. The ...

Starfish are quite rare in Hawaiian water compared to other arts of the pacific. Hawaii is thousands of miles away from the mainland and some creatures just had a hard time making the long journey all ...

Learn why some starfish develop a rare square shape through genetics, regeneration errors, and abnormal development.

The mysterious sea star wasting disease has caused massive declines of the sunflower sea star (Pycnopodia helianthoides), a major predator within kelp forests in the Northeast Pacific. The widespread ...

NEWPORT, Ore. – In an old industrial warehouse, Tiffany Rudek leaned into a chest-high tank. Using a laminated card, she gently pried a red-speckled sea star from the enclosure’s bright blue walls.

The Marianna Trench is the deepest area of the ocean, and therefore one of the most mysterious underwater regions in the world. The Mariana Trench Environment and Ecology Research expedition (MEER) ...

May 18 (UPI) --Genetic analysis of fish feces suggests crown-of-thorns starfish are a surprisingly popular menu item. According to the findings, published Monday in the journal Scientific Reports, ...

Some starfish stand out more than others. This became apparent when fisherman Lee LeFever caught an ultra-rare sunflower sea star during a recent crab fishing excursion, according to a report from ...

Archaeologists associated with Mexico's National Institute of Anthropology and History (INAH) have discovered five starfish belonging to two species in an ancient ritual offering at the Toltec site of ...