That equates to 500 liters of water. This is the highest daily loss of water of any terrestrial animal. Elephants lose more water when the weather is hot Elephants are inherently endangered, dehydration from hot weather can lead to lower birth rates, loss of milk to young elephants and death from dehydration. Elephants drink hundreds of liters of water per day, but it is not clear how climate change will change their water needs as of now. So in the new study, researchers led by conservation biologist Corinne Kendall looked at five African savanna elephants (Loxodonta africana) at the North Carolina Zoo. Over the course of three years, the team fed the elephants six times with deuterium – a heavier version of hydrogen, harmless, water-soluble and traceable back in the liquid the elephant was released. The scientists routinely took blood samples for 10 days after feeding the elephants with deuterium to see the remaining amount each time, thereby calculating the rate of excretion in the elephant’s body. The results were “staggering,” Kendall said. At cool temperatures (between 6 ° C and 14 ° C), males lose an average of 325 liters of water per day. But at about 24 ° C they lose an average of 427 liters, and sometimes go up to 516 liters, the team wrote in the Royal Society Open Science. 400 to 500 liters of such water is equivalent to 10% of the total water in the elephant’s body – or up to 7.5% of the body mass. One elephant lost nearly 9% of its body mass in just one day, says Rebecca Rimbach, an ecological biophysiologist at Duke University. However, because elephants continuously replenish lost fluids through drinking, eating, and metabolism, the elephant’s actual daily water loss is lower. In general, elephants must drink water at least every two to three days to avoid “dangerously high levels of dehydration,” Rimbach said. Worryingly, as global temperatures get higher and higher, elephants will need to drink more water. But also due to rising temperatures, water scarcity, water holes dry up, and water-rich plants become more difficult to find. Study co-author Erin Ivory, behavioralist at the North Carolina Zoo, said this double effect could also exacerbate conflict between wild elephants and human populations, when elephants attack the season. membrane or destroy groundwater infrastructure, violent confrontations that can be fatal for both humans and elephants. And the elephants that not everyone knows On average, the ear sizes of an African elephant and an Asian elephant are very different. The African elephant’s ear is three times larger than the Asian elephant’s. African elephants tend to use their long ears for reasons such as signaling or protecting others. Females spend their entire lives with their families including mothers, grandmothers, aunts, sisters and daughters, an adult female elephant often leading the party. Adult male elephants prefer to live a single life. Both African and Asian elephants use their ears as a conditioner to regulate their body temperature. The elephant’s tusks are mainly from … incisors An elephant’s tusks grow from their front teeth throughout their lives. The tusks of an adult elephant can grow 7 inches (17cm) per year. Ivory was used to find salt, water and plant roots, remove bushes, clear paths and were sometimes used in combat. In addition, they are also used to mark trees to establish an elephant’s territory. Despite having large ears, the hearing of an elephant is very poor. They can live up to 70 years. Their spout has no bones. More than 150,000 muscles and nerves provide their hose flexibility. Additionally, an elephant fills its hose up to 5 liters of water and then pours it into its mouth to drink. The elephant listens with its feet and ears. This large mammal can drink up to 80 gallons of water in a day.

Can eating less can live longer?

In eating and drinking for health, there is a lot of advice about what to do and what not to do. In it, there are popular sentences such as “The more you eat, the sooner you die”, “A person in his life can only eat 9 tons of food. Whoever eats first, then goes first”.

These two sentences have been passed down for a long time, people use the cruelest words to convey a meaning: Eating too much will reduce the life span.

So, is a person’s longevity really related to eating more or eating less?

According to that theory, if you eat too much, you die prematurely, and if you eat less, will you live longer? Is there any scientific basis?

1, Some experimental studies have shown that eating less can prolong life.

“Longevity” has always been a hot issue in scientific community research, and scientists have also confirmed through experiments that diet and longevity are actually related.

Researchers from the Max Planck Institute for Aging Biology in Germany have published an article in the journal Nature, where the team has identified a protein called Sestrin in lab animal fruit flies. for intestinal cells, by limiting dietary intake, reducing the activity of intestinal stem cells, inhibiting the signal of aging, thereby improving health and prolonging life expectancy.

American scientists have studied from 200 monkeys. Divide monkeys into two groups, one group does not control their diet and eat until they are full, the other group limits their diets and eat only 70-80% full. After 10 years, it was found that the number of monkeys that controlled the diet had died up to 50, and the number of monkeys that controlled the diet was only 12 dead.

By year 15, all monkeys that did not control their diets died.

This method of grouping control variables has also been tested in humans.

Researchers from Duke University, USA divided 220 participants with an average age of 38 years and biological age of 37 years (biological age calculated by calculating total cholesterol, blood pressure and hemoglobin). into a group of 145 and a group of 75.

Among them, 145 people limited their portion sizes, consuming 10% less on average per meal, and the remaining 75 without any restrictions.

Two years later, it was found that the mean annual biological age of the restricted eating group decreased by 0.11 years and that the body was younger; while those taking the unrestricted diet increased their biological age by 0.71 years each year.

These studies all come to the same conclusion: Proper dietary control is beneficial for longevity, and eating less can prolong life.

2, Control your diet ≠ deliberate dieting

Proper dietary control is good for health and longevity, but it certainly shouldn’t excuse you. Diet control means on the basis of ensuring a sufficient supply of nutrients, not eating too full and eating 70-80% fullness. If you deliberately diet and do not eat anything will cause illnesses, such as increasing the burden on the heart, causing symptoms of dehydration, anorexia that can cause major harm to the gut and stomach, and health. The gastrointestinal tract is closely related to longevity.

The digestive tract has the functions of digestion, absorption, excretion, immunity and emotional regulation, is the most important organ to support health.

An unhealthy digestive tract can easily cause malnutrition and cause or worsen various diseases. The health of the gut naturally affects longevity.

So, in addition to controlling the diet, we should also pay attention to healthy and protect the stomach.

3, How to protect gastrointestinal health?

Take control of your portion sizes. Each meal is to eat 70-80% full compared with a full meal, which has a lighter burden on the digestive tract and stomach. It may also play a role in stomach nourishment and stomach protection.

For daily food intake, please refer to the relevant British Dietetic Association’s documentation for more details. The generalized example is as follows:

Fish and shrimp: 50 ~ 100g

Vegetables: 300 ~ 500g

Fruit: 200 ~ 400g

Nuts: less than 30g, as big as the palm of your hand

Meat: less than 75g, the total amount of red meat should be controlled below 500g per week.

Main food (starch from cereals or potatoes): in 400g of raw cereals should account for 1/3 of the nutrition, inseparable to help the stomach digest and absorb well, if there are problems with the digestive tract. the chemical must be adjusted in time.

* The article references data from many sources.