Elephants could fluctuate what they eat for dinner each night time similar to people, a research suggests.

Researchers have used modern strategies to analyse the dietary habits of two teams of elephants in Kenya right down to the particular kinds of crops eaten by the animals in every group.

The research discovered that elephants fluctuate their diets based mostly not solely on what is offered, but additionally their preferences and physiological wants.

For instance, a pregnant elephant could have completely different cravings and necessities at varied occasions in her being pregnant.

The findings additionally inform theories of why a bunch of elephants could forage collectively - the person animals don't at all times eat precisely the identical crops on the identical time, so there'll normally be sufficient crops to go round.

Researchers say their findings assist reply necessary questions concerning the foraging behaviour of teams, and assist biologists in understanding conservation approaches that greatest maintain elephants happy.

The research's creator Tyler Kartzinel, an assistant professor of environmental research and of ecology, evolution and organismal biology at Brown University in Rhode Island within the US, stated: "By better understanding what each individual eats, we can better manage iconic species like elephants, rhinos and bison to ensure their populations can grow in sustainable ways."

One of the primary instruments that the scientists used to conduct their research known as DNA metabarcoding, a genetic method that enables researchers to establish the composition of organic samples by matching the extracted DNA fragments representing an elephant's meals to a library of plant DNA barcodes.

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Mr Kartzinel stated: "When I talk to non-ecologists, they are stunned to learn that we have never really had a clear picture of what all of these charismatic large mammals actually eat in nature.

"The motive is that these animals are tough and harmful to watch from up-close, they transfer lengthy distances, they feed at night time and in thick bush and lots of the crops they feed on are fairly small."

Additionally, the researchers suggest what elephants eat can be nearly impossible to identify by eye, even for an expert botanist.

The study, published in Royal Society Open Science, also found that dietary differences among individual elephants were often far greater than had been previously assumed, even among family members that foraged together on a given day.

Mr Kartzinel said: "Wildlife populations want entry to various dietary assets to prosper.

"Each elephant needs variety, a little bit of spice - not literally in their food, but in their dietary habits."