The crappier fish, which are more aggressive than their more friendly cousins, have long been seen as pests in gardens, with some claiming that their diet is causing a problem.
A new study has found that they also eat fruit and vegetables, as well as algae and other waste products.
But some believe the animals’ behaviour could be linked to their diet.
The researchers examined the behaviour of four species of crappy fish that feed on dead or dying crabs and shrimp.
The species were all found to feed on crabs and live on the seafloor, but also on dead fish.
The crabs and dead shrimp were also fed on by other fish, but the crappiest fish was the most likely to consume the dead crabs and the dead shrimp.
They were found to be more aggressive towards crabs and living shrimp than other species of fish, the researchers say.
Crabby fish The crabby fish was found to eat dead shrimp, crabs and crabs and shellfish in the same place as the other fish and crustaceans.
They also ate fish larvae.
Crab-like fish The researchers suggest the crabbyfish is more likely to eat the crabs and crab larvae, and to eat other types of dead shrimp and dead fish as well.
The crab-like animals have been seen feeding on dead crabs, crabs, and crabs larvae in gardens for hundreds of years, according to the research.
The research was carried out at a research station in Australia’s Torres Strait region and in the waters of New South Wales and Western Australia.
It was funded by the Natural Environment Research Council of Australia.
Researchers are now studying whether the crabs-like behaviour is caused by the crabs eating the crabs, or by other types.
The study has been published in the journal Scientific Reports.