Their poor memories mean fish are often seen as the dunces of the animal kingdom. But a new study suggests that view may be a little misguided because stingrays and zebra mbuna have been found to add ...

Zebra mbuna (a species of cichlid fish) and stingrays can add and subtract one from the numbers one to five, according to a study published in Scientific Reports. The findings highlight that the ...

Animals are remarkably diverse in their sleep and activity patterns due to foraging strategies, social behavior and their desire to avoid predators. With more than 3,000 types of cichlids, these ...