Ear Bones Reveal Health History of Mothers, Children of 18th Century

An archaeologist collects human bones as part of a restoration
work in an effort to preserve the Sedlec Ossuary in Kutna Hora, Czech
Republic, February 14, 2019. — Reuters pic
An archaeologist collects human bones as part of a restoration work in an effort to preserve the Sedlec Ossuary in Kutna Hora, Czech Republic, February 14, 2019. — Reuters pic
TT

Ear Bones Reveal Health History of Mothers, Children of 18th Century

An archaeologist collects human bones as part of a restoration
work in an effort to preserve the Sedlec Ossuary in Kutna Hora, Czech
Republic, February 14, 2019. — Reuters pic
An archaeologist collects human bones as part of a restoration work in an effort to preserve the Sedlec Ossuary in Kutna Hora, Czech Republic, February 14, 2019. — Reuters pic

Researchers at the School of Archaeological and Forensic Sciences, University of Bradford, have found that the bones of a dead child that date back to the past centuries, can provide information on the health of the mother and her baby in the first two trimesters of pregnancy, and the child's first two years.

During the study, which was published in the Annals of Human Biology journal, archaeologists examined ear ossicles taken from the skeletons of 20 juveniles, excavated from an 18th and 19th century burial ground in Blackburn, England. They were chosen to represent those with and without dietary disease, such as rickets and scurvy caused by the deficiencies of vitamin D and C.

Under the supervision of Dr. Julia Beaumont, professor of archeology at the University of Bradford, the researchers examined the children's bones and found that ear ossicle, the smallest bone in the human body, can provide information on the health of the mother and baby in old populations, and can be used to identify children at risk of disease in later life.

Building on Dr. Beaumont's previous research using teeth to get information on the health of mothers and babies, the team identified that a person's ossicles can also provide such information. However, what the team did not expect is that information can be obtained from the body's smallest bone: the ear ossicle.

"The ossicles are formed early on, when the child is in the womb and finishes developing in the first two years. Therefore, unlike other bones, it provides a unique snapshot of the health of the mother during the early stages of pregnancy," Beaumont told Asharq Al-Awsat.

This is the first time that human ear bones have been used to investigate the diet of people who died thousands of years ago. But, the findings can also be used to track the health of living people, Beaumont noted.

"Given that feeding an infant in the first 1,000 days of life is important for his lifetime, the ability to measure this from the tissues formed during that period can allow us to identify children at risk, and ear bones can help," she concluded.



Deep-sea Fish Break the Mold with Novel Visual System

A close-up showing the shiny silver-green photophores (light organs) on the lower head of the deep-sea fish Maurolicus muelleri from the Red Sea, seen in this photograph released on February 11, 2026. Dr. Wen-Sung Chung/Handout via REUTERS
A close-up showing the shiny silver-green photophores (light organs) on the lower head of the deep-sea fish Maurolicus muelleri from the Red Sea, seen in this photograph released on February 11, 2026. Dr. Wen-Sung Chung/Handout via REUTERS
TT

Deep-sea Fish Break the Mold with Novel Visual System

A close-up showing the shiny silver-green photophores (light organs) on the lower head of the deep-sea fish Maurolicus muelleri from the Red Sea, seen in this photograph released on February 11, 2026. Dr. Wen-Sung Chung/Handout via REUTERS
A close-up showing the shiny silver-green photophores (light organs) on the lower head of the deep-sea fish Maurolicus muelleri from the Red Sea, seen in this photograph released on February 11, 2026. Dr. Wen-Sung Chung/Handout via REUTERS

For more than a century, biology textbooks have stated that vision among vertebrates - people included - is built from two clearly defined cell types: rods for processing dim light and cones for bright light and color. New research involving deep-sea fish shows this tidy division is, in reality, not so tidy.

Scientists have identified a new type of visual cell in deep-sea fish that blends the shape and form of rods with the molecular machinery and genes of cones. This hybrid type of cell, adapted for sight in gloomy light conditions, was found in larvae of three deep-sea fish species in the Red Sea, Reuters reported.

The species studied were: a hatchetfish, with the scientific name Maurolicus mucronatus; a lightfish, named Vinciguerria mabahiss; and a lanternfish, named Benthosema pterotum. The hatchetfish retained the hybrid cells throughout its life. The other two shifted to the usual rod-cone dichotomy in adulthood.

All three are small, with adults measuring roughly 1-3 inches (3-7 cm) long and the larvae much littler. They inhabit a marine realm of twilight conditions, with sunlight struggling to penetrate into the watery depths.

The vertebrate retina, a sensory membrane at the back of the eye that detects light and converts it into signals to the brain, possesses two main types of light-sensitive visual cells, called photoreceptors. They are named for their shape: rods and cones.

"The rods and cones slowly change position inside the retina when moving between dim and bright conditions, which is why our eyes take time to adjust when we flick on the light switch on our way to the restroom at night," said Lily Fogg, a postdoctoral researcher in marine biology at the University of Helsinki in Finland and lead author of the research published in the journal Science Advances.

"We found that, as larvae, these deep-sea fish mostly use a mix-and-match type of hybrid photoreceptor. These cells look like rods - long, cylindrical and optimized to catch as many light particles - photons - as possible. But they use the molecular machinery of cones, switching on genes usually found only in cones," Fogg said.

The researchers examined the retinas of fish larvae caught at depths from 65 to 650 feet (20 to 200 meters). In the type of dim environment they inhabit, rod and cone cells both are usually engaged in the vertebrate retina, but neither works very well. These fish display an evolutionary remedy.

"Our results challenge the longstanding idea that rods and cones are two fixed, clearly separated cell types. Instead, we show that photoreceptors can blend structural and molecular features in unexpected ways. This suggests that vertebrate visual systems are more flexible and evolutionarily adaptable than previously thought," Fogg said.

"It is a very cool finding that shows that biology does not fit neatly into boxes," said study senior author Fabio Cortesi, a marine biologist and neuroscientist at the University of Queensland in Australia. "I wouldn't be surprised if we find these cells are much more common across all vertebrates, including terrestrial species."

All three species emit bioluminescence using small light-emitting organs on their bodies, mostly located on the belly. They produce blue-green light that blends with the faint background light from the sun above. This strategy, called counterillumination, is a common form of camouflage in the deep sea to avoid predators.

"Small fish like these fuel the open ocean. They are plentiful and serve as food for many larger predatory fishes, including tuna and marlin, marine mammals such as dolphins and whales, and marine birds," Cortesi said.

These kinds of fish also engage in one of the biggest daily migrations in the animal kingdom. They swim near the surface at night to feed in plankton-rich waters, then return to the depths - 650 to 3,280 feet (200 to 1,000 meters) - during daytime to avoid predation.

"The deep sea remains a frontier for human exploration, a mystery box with the potential for significant discoveries," Cortesi said. "We should look after this habitat with the utmost care to make sure future generations can continue to marvel at its wonders."


Japan City Gets $3.6 Mn Donation in Gold to Fix Water System

FILE PHOTO: Factories line the port of Osaka, western Japan October 23, 2017. REUTERS/Thomas White/File Photo
FILE PHOTO: Factories line the port of Osaka, western Japan October 23, 2017. REUTERS/Thomas White/File Photo
TT

Japan City Gets $3.6 Mn Donation in Gold to Fix Water System

FILE PHOTO: Factories line the port of Osaka, western Japan October 23, 2017. REUTERS/Thomas White/File Photo
FILE PHOTO: Factories line the port of Osaka, western Japan October 23, 2017. REUTERS/Thomas White/File Photo

Osaka has received an unusual donation -- 21 kilograms of gold -- to pay for the maintenance of its ageing water system, the Japanese commercial hub announced Thursday.

The donation worth $3.6 million was made in November by a person who a month earlier had already given $3,300 in cash for the municipal waterworks, Osaka Mayor Hideyuki Yokoyama told a press conference.

"It's an absolutely staggering amount," said Yokoyama, adding that he was lost for words to express his gratitude.

"I was shocked."

The donor wished to remain anonymous, AFP quoted the mayor as saying.

Work to replace water pipes in Osaka, a city of 2.8 million residents, has hit a snag as the actual cost exceeded the planned budget, according to local media.


Thai Cops Go Undercover as Lion Dancers to Nab Suspected Thief

People gather to watch performers outside Emsphere shopping mall on the first day of the Lunar New Year of the Horse, in Bangkok on February 17, 2026. (Photo by Lillian SUWANRUMPHA / AFP)
People gather to watch performers outside Emsphere shopping mall on the first day of the Lunar New Year of the Horse, in Bangkok on February 17, 2026. (Photo by Lillian SUWANRUMPHA / AFP)
TT

Thai Cops Go Undercover as Lion Dancers to Nab Suspected Thief

People gather to watch performers outside Emsphere shopping mall on the first day of the Lunar New Year of the Horse, in Bangkok on February 17, 2026. (Photo by Lillian SUWANRUMPHA / AFP)
People gather to watch performers outside Emsphere shopping mall on the first day of the Lunar New Year of the Horse, in Bangkok on February 17, 2026. (Photo by Lillian SUWANRUMPHA / AFP)

Thai police donned a lion dance costume during this week's Lunar New Year festivities to arrest a suspect accused of stealing about $64,000 worth of Buddhist artifacts, police said Thursday.

Officers dressed as a red-and-yellow lion made the arrest on Wednesday evening after receiving a report earlier this month of a home burglary in the suburbs of the capital, Bangkok, AFP reported.

Capital police said the reported break-in involved "numerous Buddhist objects and two 12-inch Buddha statues", along with evidence of repeated attempts to enter the house, according to a statement.

With few leads, police kept watch for weeks before hatching an unusual plan to join a lion dance procession at a nearby Buddhist temple.

"Officers gradually moved closer to the suspect before arresting him," police said.

A video released by police showed the festive lion dancers approaching the suspect before an officer suddenly emerged from the head of the costume and, with help from colleagues, pinned him to the ground.

Police estimated the value of the stolen items at around two million baht ($64,000).

The suspect, a 33-year-old man, has a criminal record involving drug offences and theft, police added.