عربي English Türkçe اردو فارسى
Logo
Latest News
Varieties

Riyadh Hosts International Chemistry Olympiad 2024

Riyadh hosts the 56th edition of the International Chemistry Olympiad 2024 (IChO 2024) from July 21 to 30. (SPA)
Riyadh hosts the 56th edition of the International Chemistry Olympiad 2024 (IChO 2024) from July 21 to 30. (SPA)
TT
TT

Riyadh Hosts International Chemistry Olympiad 2024

Riyadh hosts the 56th edition of the International Chemistry Olympiad 2024 (IChO 2024) from July 21 to 30. (SPA)
Riyadh hosts the 56th edition of the International Chemistry Olympiad 2024 (IChO 2024) from July 21 to 30. (SPA)

Riyadh hosts the 56th edition of the International Chemistry Olympiad 2024 (IChO 2024) from July 21 to 30, the Saudi Press Agency said on Sunday.
The event is organized by the King Abdulaziz and his Companions Foundation for Giftedness and Creativity "Mawhiba”, in strategic partnership with the Ministry of Education and King Saud University (KSU), which will host the competition.
The IChO 2024, exclusively sponsored by Saudi Basic Industries Corporation (SABIC), will feature 333 students from 90 countries, with oversight, evaluation, and judging by 260 chemistry experts.
Students will compete for 10 honorary certificates, 110 bronze medals, 70 silver medals, and 35 gold medals. The final results will be announced on July 28 at 11 PM.
This annual scientific competition is the largest international chemistry contest for general education students.
Since its establishment in Prague, Czechoslovakia, in 1968, the competition has been held annually over ten days, with a different host country each year.
The Kingdom of Saudi Arabia participated as an observer in 2004 and 2005, then with students in 2006 and 2007. The Kingdom returned to participate as an observer in 2008, 2009, and 2010, and has since participated with students from 2011 up to present.
The Kingdom’s hosting of the IChO 2024 reflects the excellence of Saudi students on the international stage and enhances the Kingdom's status as a leading global destination in various scientific fields.

Most Viewed

 
 
Varieties

Orca that Carried her Dead Calf for Weeks in 2018 is Doing so Once Again

In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan. 1, 2025. (Candice Emmons/NOAA Fisheries via AP)
In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan. 1, 2025. (Candice Emmons/NOAA Fisheries via AP)
TT
TT

Orca that Carried her Dead Calf for Weeks in 2018 is Doing so Once Again

In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan. 1, 2025. (Candice Emmons/NOAA Fisheries via AP)
In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan. 1, 2025. (Candice Emmons/NOAA Fisheries via AP)

An endangered Pacific Northwest orca that made global headlines in 2018 for carrying her dead calf for over two weeks is doing so once again following the death of her new calf, in another sign of grief over lost offspring, researchers said.
The mother orca, known as Tahlequah or J35, has been seen carrying the body of the deceased female calf since Wednesday, the Washington state-based Center for Whale Research said in a Facebook post.
“The entire team at the Center for Whale Research is deeply saddened by this news and we will continue to provide updates when we can,” The Associated Press quoted the post as saying.
In 2018, researchers observed J35 pushing her dead calf along for 17 days, propping it up for more than 1,000 miles (1,600 kilometers). The calf had died shortly after it was born, and the mother and her closely knit pod of whales were seen taking turns carrying the dead body.
The research center said roughly two weeks ago that it had been made aware of the new calf. But on Christmas Eve, it said it was concerned about the calf's health based on its behavior and that of its mother.
By New Year’s Day, officials with the National Oceanic and Atmospheric Administration were able to confirm that J35 was carrying her calf’s dead body, said Brad Hanson, a research scientist with the federal agency.
Hanson, who was able to observe her behavior from a boat on Wednesday, said J35 was draping the dead calf across her snout or on top of her head, and that she appeared to dive for it when it sank from the surface. He said the calf was only alive for a "handful of days.”
“I think it’s fair to say that she is grieving or mourning,” Joe Gaydos, science director of SeaDoc at the University of California, Davis, said of J35. Similar behavior can also be seen in other socially cohesive animals with relatively long life spans, such as primates and dolphins, he added.
Calf mortality is high: Only about 1 in 5 orca pregnancies result in a calf that lives to its first birthday, according to the Center for Whale Research. The center's research director, Michael Weiss, estimated that only 50% of orca calves survive their first year.
The center described the death of J35's calf as particularly devastating — not only because she could have eventually grown to give birth and bolster the struggling population, but because J35 has now lost two out of four documented calves.
The population of southern resident killer whales — three pods of fish-eating orcas that frequent the waters between Washington state and British Columbia — has struggled for decades, with only 73 remaining. They must contend with a dearth of their preferred prey, Chinook salmon, as well as pollution and vessel noise, which hinders their hunting. Researchers have warned they are on the brink of extinction.
Other southern resident orcas have been observed carrying dead calves, Weiss said, “but certainly not for as long as J35 carried her calf in 2018.”
There was some good news for the J pod, however: another new calf, J62, was observed alive by officials and scientists.
Southern resident orcas are endangered, and distinct from other killer whales because they eat salmon rather than marine mammals. Individual whales are identified by unique markings or variations in their fin shapes, and each whale is given a number and name.
Traveling together in matrilineal groups, the orcas at times can be seen breaching around Puget Sound, even against the backdrop of the downtown Seattle skyline.