Australia: World's first kangaroo embryos created via IVF
New Delhi, Feb 7 (PTI): Scientists have successfully produced the first kangaroo embryos through in vitro fertilisation (IVF), a development that they said could be critical for saving the species from extinction.
In a study published in the journal Reproductive, Fertility and Development, researchers, led by those at the University of Queensland in Australia, documented the potential of assisted reproduction for native marsupial conservation.
"Our ultimate goal is to support the preservation of endangered marsupial species like koalas, Tasmanian devils, northern hairy-nosed wombats and Leadbeater's possums," said lead researcher Andres Gambini, a senior lecturer in animal science at the University of Queensland.
"By developing preservation methods, we aim to safeguard the genetic material of these unique and precious animals for future use to ensure their conservation," Gambini said.
IVF is being explored around the world for conserving endangered species. In January 2024, scientists in Germany transferred a rhino embryo, the world's first produced through IVF, into a surrogate.
In this study, the researchers tracked how lab cultures of kangaroo eggs and sperm developed over time.
"Because eastern grey kangaroos are overabundant, we collected their eggs and sperm for use as a model to adapt the embryo technologies already applied to domestic animals and humans," Gambini explained.
The authors wrote, "A total of 32 ovarian follicles (sacs in ovaries containing immature eggs) were cultured from one female, 78 per cent exhibited some degree of growth and 12 per cent of these doubled in size."
Embryos were then formed by the technique 'intracytoplasmic sperm injection (ICSI)', in which a sperm is directly injected into a mature egg.
"While it's difficult to provide an exact timeline, with sustained collaboration, funding and continued technical advancements, we are hopeful the birth of a marsupial through IVF could become a reality within a decade," Gambini said.
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4.4 magnitude quake hits northern Pakistan
Islamabad (PTI): A 4.4 magnitude earthquake jolted parts of north and northwestern Pakistan on Saturday, the second tremor to hit the country in as many days.
There were no immediate reports of casualties or damage.
The earthquake that struck at 9:30 am (local time) originated at a depth of 14 kilometres with its epicentre located 11 kms northeast of Burhan, Attock, according to the National Seismic Monitoring Centre, Islamabad.
Tremors were felt in parts of Khyber Pakhtunkhwa as well as in Islamabad and Rawalpindi.
The Saturday morning quake came less than 24 hours after a 5.9 magnitude temblor struck parts of Khyber Pakhtunkhwa and Punjab provinces, with tremors felt in several cities, including Peshawar and Islamabad, on Friday.
The epicentre of that quake at 6:09 pm (local time) was in Afghanistan's Hindu Kush region at a depth of 101 kilometres.
Earthquakes are common in northern Pakistan due to its location in the Himalayas where the Indian and the Eurasian tectonic plates meet.
Earlier, a 5.6-magnitude earthquake hit Balochistan province on February 13 but no loss to life or property was reported there too. Its epicentre was 86 kms northeast of Khuzdar town of the province.
The quake was preceded on the same day by another tremor of magnitude 3.8 that struck 75 kms southeast of Khuzdar at a depth of 33 kms.
The worst quake the country suffered was in 2005, which killed about 74,000 people.
