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manaksia steels limited (539044) to launch new product line ✌️【Market Forecast】✌️ Free real-time stock data analysis to help you capture global market trends and steadily grow your capital. 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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manaksia steels limited (539044) to launch new product line ✌️【Market Forecast】✌️ Free stock selection service with precise predictions of high-potential stocks to help you stay ahead in the market. 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.”

manaksia steels limited (539044) to launch new product line ✌️【Market Forecast】✌️ Expert market predictions with real-time global market, futures, metals, and energy data to help you stay in tune with market trends. Researchers do not know why female orcas are less likely to reproduce in such cases, but they suspect that sharing their food with their fully-grown sons may mean mothers are having to go with less.

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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 Exclusive Investment Tips 】 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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