Cleaner fish show intelligence typical of mammals
Peer-Reviewed Publication
Updates every hour. Last Updated: 2-May-2026 06:16 ET (2-May-2026 10:16 GMT/UTC)
Cleaner fish interacted with a mirror in their tank in a way that suggests ‘contingency testing’ intelligence, a higher form of smarts typically found in mammals. This finding coupled with faster self-recognition than previously thought, expands our image of intelligence in these social fish.
Digital games are often considered to be isolating; however, recent research shows that these games can also foster strong social bonds among players. A study conducted at Doshisha University analyzed a Japanese Discord community built for the competitive game Splatoon 3. The findings revealed that the gaming community also served as a space for social connection, emotional support, and belonging—highlighting the growing social role of online communities in everyday life.
Babies with an increased likelihood of autism may struggle to settle into deep, restorative sleep, according to a new study from the University of East Anglia. Researchers studied the link between sleep and sensory sensitivity, which is common in neurodivergent infants. They found that when babies with this trait napped in a noisy environment, their deep sleep was considerably disrupted.But even in a quiet room, those with high sensory sensitivity still slept more lightly - suggesting that both their unique sensory wiring and their surroundings influence how well they rest.
Malnutrition is a critical developmental obstacle in Timor-Leste, with poor maternal health and nearly half of its children under five suffering from stunting from diets that are chronically low in nutrient-rich foods, including fish. A new study from Timor-Leste, published in the peer-reviewed journal PLOS ONE, shows that when it comes to improving intake of dietary nutrition, increased fish supply only works in tandem with public awareness and not alone.
The study, conducted by WorldFish scientists in collaboration with Mercy Corps examined the effects of increasing pelagic fish catch through nearshore Fish Aggregating Devices (FADs) and social behaviour change (SBC) communication on improving fish consumption among inland, nutritionally vulnerable communities.
Growing up, you probably changed your style based on your social influences. It turns out, such pressures affect the appearance of young clownfish (anemonefish) too. A new study from the Okinawa Institute of Science and Technology (OIST) has revealed the social influences and biological mechanisms controlling bar loss in tomato anemonefish, showing how the presence of older fish changes the speed at which young fish lose their additional white vertical stripe.