Study finds most female rhinoceros beetles mate once in lifetime

A study has found that most female Japanese rhinoceros beetles mate only once in their lifetime. This behavior is linked to their adult lifespan of a maximum of about two to three weeks in the wild, making mating a programmed once-in-a-lifetime event.

According to The Japan Times, a study by Yamaguchi University researchers has determined that most female rhinoceros beetles mate only once in their lifetime. The adult Japanese rhinoceros beetle has a maximum lifespan of about two to three weeks in the wild, leading to the belief that mating is programmed as a once-in-a-lifetime event. Keywords associated with the article include beetles, Yamaguchi University, INSECTS, and ANIMALS. The report was published on March 17, 2026, shedding light on insect reproductive strategies.

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Realistic depiction of a frozen wolf pup with woolly rhinoceros in its stomach, scientists analyzing ancient DNA for extinction clues.
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Unique DNA analysis of extinct woolly rhinoceros in wolf stomach

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Researchers at the Swedish Centre for Palaeogenetics have analyzed DNA from an extinct woolly rhinoceros found in the stomach of a frozen wolf pup. The discovery, the first of its kind from the Ice Age, provides new clues about the species' extinction. The analysis suggests climate change likely caused the rhinoceros's disappearance rather than human hunting.

A parasitic ant species from Japan, Temnothorax kinomurai, has been confirmed to produce exclusively queens, with no males or workers. Researchers found that these queens reproduce asexually and invade colonies of related species to raise their offspring. This discovery reveals a novel form of social organization in ants.

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An international study of mammals in zoos shows that limiting reproduction through contraception or sterilization increases average lifespan by about 10 percent. The effects differ between sexes, with males benefiting from reduced testosterone and females from avoiding pregnancy's physical toll. These findings highlight a key evolutionary trade-off between breeding and survival.

On Valentine's Day, amid celebrations of love, a question arises: are we loving the same person who is constantly changing? Science shows that most human body cells renew every 7-10 years, yet consciousness and memories remain constant.

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Scientists have confirmed that Belgica antarctica, the southernmost insect on Earth, is ingesting microplastics in the wild. Lab experiments reveal that while the insect's larvae survive short-term exposure, higher plastic levels lead to reduced fat reserves. The findings highlight the global reach of plastic pollution, even in isolated Antarctica.

A University of Cambridge study ranks humans among the most monogamous mammals, closer to beavers and meerkats than to chimpanzees. By analyzing sibling ratios across species and human societies, researchers found that long-term pair bonding is unusually prevalent in our species. Even in cultures allowing polygamy, human monogamy exceeds that of most other mammals.

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National Geographic's documentary Secrets of the Bees became available to stream on Disney+ and Hulu starting April 1. In a recent interview, entomologist Dr. Samuel Ramsey discussed his bee research at the University of Colorado Boulder and efforts to sequence honey bee genomes worldwide. The series highlights global bee health challenges and his work in Southeast Asia.

 

 

 

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