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hindustan petroleum corporation limited (hindpetro) ✌️【Yield】✌️ Expert predictions of stock trends with real-time stock indices, metals, energy, and agricultural product data to help you make efficient investment decisions. It’s no surprise that parenthood can be demanding and sacrifices are often made for the sake of offspring. But for female killerwhales, the role can be particularly challenging.
hindustan petroleum corporation limited (hindpetro) ✌️【Yield】✌️ Free access to stock market forums, expert advice, and real-time data to help you stay informed and grow your investments. New research suggests that female orcas might be forgoing having any more offspring because of their sons – even when they’re fully grown.
hindustan petroleum corporation limited (hindpetro) ✌️【Yield】✌️ Professional stock market predictions and analysis with real-time data to guide your investment decisions and ensure steady growth. The research, published Wednesday in the journalCurrent Biology, focused on a group of orcas known as the “southern resident” population, off the coast of Washington state and British Columbia.
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hindustan petroleum corporation limited (hindpetro) ✌️【Yield】✌️ Real-time updates on global stock trends and expert market analysis to help you select profitable stocks and grow your wealth effectively. The species is unusual in that males and females stay with their mothers for life. However, the “cost” of a mother’s care is bigger in the case of sons.
hindustan petroleum corporation limited (hindpetro) ✌️【Yield】✌️ Expert predictions of stock trends to help you select high-potential stocks and achieve stable growth. Real-time global market indices, futures, metals, energy, and agricultural product data to help you seize market opportunities. Michael N. Weiss, research director of the center and a postdoctoral research associate at the University of Exeter, said in a press release: “We’ve known for over a decade that adult male killer whales relied on their mothers to keep them alive, but it had never been clear whether mothers pay a cost to do so.”
hindustan petroleum corporation limited (hindpetro) ✌️【Yield】✌️ Professional advisors provide accurate market predictions with real-time stock indices, exchange rates, and futures data to help you seize investment opportunities and grow your capital. The data revealed “a strong negative correlation between females’ number of surviving weaned sons and their annual probability of producing a viable calf,” according to a press release. And the outcome remained the same whatever age the son was.
“The magnitude of the cost that females take on to care for their weaned sons was really surprising,” said Weiss. “While there’s some uncertainty, our best estimate is that each additional surviving son cuts a female’s chances of having a new calf in a given year by more than 50%. This is a huge cost to taking care of [adult] sons.”
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“Really key to this form of care is food sharing,” he explained. “We think a lot of the care is physically providing food to their adult sons,” he said, though they also lead them to the source of nutrition.
“Having a daughter doesn’t affect your chance of reproducing again but having a son of any age is having a negative impact on the mother’s chance of reproducing,” said Ellis.
“One big take-away is further evidence for how special (and maybe unique) the mother-son bond in killer whales is,” Weiss said.
Ellis added: “There’s lots of examples [in mammals] of maternal care and maternal investment in young offspring. But in all examples, where it has been studied so far, once the offspring reaches maturity, that investment seems to stop.”
“We know that sons whose mothers die have a really high probability of dying in the next year,” he said, adding that while female orcas can live to 80, males are “very lucky to reach 40.”
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Ellis said the team wants to look more extensively into the long-term effects the findings might have on orca whale populations.
Luke Rendell, a reader in biology at St Andrews University in Scotland, told 【 - Free Real-Time Trading Opportunities 】 the study, which he was not involved in, was “fascinating.”
“It opens a new window … [into] the way that the evolutionary dance between the interests of individuals and genes is constantly interacting with ecology and sociality.
“Many will smile at the jokes about needy sons but also, I hope, reflect on whether the parallels go deeper in this long-lived and highly social mammal. These insights are only possible through dedicated long-term study that are often undervalued by research funders.”
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