Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.
--------
Question: Paragraph: Not applicable. The cost of olive oil is not in question. This story did the best job of the three stories we reviewed in quantifying the potential benefits observed in the study. "Over the next five to six years, those intensive users suffered strokes at a rate of 0.3 percent per year. That compared with just over 0.5 percent among non-users, and 0.4 percent among moderate users. When the researchers factored in other diet habits, exercise levels and major risk factors for stroke like high blood pressure and diabetes heavy olive oil use was tied to 41 percent reduction in the odds of stroke." There are better ways to try to communicate numbers of less than one percent. But we applaud the detail provided. Not applicable. Excellent. The story devoted almost 200 words to the potential limitations of such an observational study. Also a clear description of the cohort design. No disease-mongering of stroke in the story. The story included strong input from a researcher who wrote in an editorial on the study. The story at least mentioned other factors that could be at play "no single food is consumed in isolation, he points out in his editorial. Olive oil is one part of the Mediterranean diet that has been tied to heart benefits. The diet also boasts plenty of fruits and vegetables, legumes, whole grains, fish and moderate amounts of red wine." Not applicable. The availability of olive oil is not in question. The story attempted to put the new finding into the context of past research on olive oil and the Mediterranean diet. It's clear the story did not rely on a news release. Claim: Olive oil lovers show lower stroke risk

Answer: This story explored the nature of an observational study about the stroke-reducing risks of olive oil. The story appropriately discussed other possible reasons for the findings and why a clinical trial is stronger evidence. With so much news coverage touting an apparent benefit from olive oil in this study (CBS had a headline about "huge decline in stroke risk"), it is refreshing to see so much time and space given to a clear-eyed evaluation of the evidence as this story provided.

Question: Paragraph: The bee, once widely found in the upper Midwest and Northeastern United States, was listed after U.S. President Donald Trump's administration lifted a hold it had placed on a plan for federal protections proposed last fall by the administration of former President Barack Obama. Bumble bees are key pollinators of crops such as blueberries and cranberries, and are almost the only insect pollinator of tomatoes in the United States, according to the U.S. Fish and Wildlife Service. Conservation groups that had called for the new classification welcomed the move. "The listing helps mediate threats for this species and for all of those other animals out on the landscape that are suffering similar setbacks," Rich Hatfield, senior biologist at the Xerces Society for Invertebrate Conservation, said by phone on Tuesday. The rusty patched bumble bee, or Bombus affinis, is one of 47 varieties of native bumble bees in the United States and Canada, more than a quarter of which face risk of extinction, according to the International Union for the Conservation of Nature. The population and range of the bee, named for the reddish blotch on its abdomen, have declined by more than 90 percent since the late 1990s due to disease, pesticides, climate change and habitat loss, according to wildlife officials. The agency in September proposed safeguarding the bee, but the listing was delayed by Trump's White House as part of a broader freeze on rules issued by the prior administration. Environmental advocacy group the Natural Resources Defense Council sued last month, arguing that suspending the listing without public notice or comment violated the law. The NRDC said on Tuesday it was evaluating the next steps in its legal fight. Government scientists said the delay, part of a standard review, was not expected to affect the insect's conservation, Interior Department spokeswoman Heather Swift said in a statement on Tuesday. The agency "will work with stakeholders to ensure collaborative conservation among landowners, farmers, industry, and developers in the areas where the species is native," she added. Bumble bees pollinate wildflowers and about a third of U.S. crops, according to the Xerces Society. A recent study by the Center for Biological Diversity found that more than 700 of the 4,000 bee species native to North America and Hawaii may be inching toward extinction. Claim: First U.S. bumble bee added to endangered species list.

Answer: The rusty patched bumble bee became the first wild bee in the continental United States to gain federal protection on Tuesday when it was added to the government's list of endangered and threatened species.

Question: Paragraph: In an important discovery in the evolutionary history of sexual reproduction, the scientists found that male fossils of the Microbrachius dicki, which belong to a placoderm group, developed bony L-shaped genital limbs called claspers to transfer sperm to females. Females, for their part, developed small paired bones to lock the male organs in place for mating. Placoderms are the earliest vertebrate ancestors of humans. "Placoderms were once thought to be a dead-end group with no live relatives, but recent studies show that our own evolution is deeply rooted in placoderms and that many of the features we have such as jaws, teeth and paired limbs first originated with this group of fishes," said John Long, a paleontologist at Flinders University in South Australia who led the research. This new finding, he added, shows that "they gave us the intimate act of sexual intercourse as well". Matt Friedman, a paleobiologist from Britain's Oxford University who was not involved in the research, described its findings as "nothing short of remarkable" and said they suggested much more could be learned from the fossil fishes. Long, whose study was published in the journal Nature on Sunday, discovered the ancient fishes' mating abilities when he stumbled across a single fossil bone in the collections of the University of Technology in Tallinn, Estonia, last year. The research then involved scientists from Australia, Estonia, Britain, Sweden and China, who analyzed fossil specimens from museum collections across the world. These demonstrate the first use of internal fertilization and copulation as a reproductive strategy known in the fossil record. Measuring about 8 centimeters (3 inches) in length, Microbrachius lived in ancient lake habitats in Scotland, as well as parts of Estonia and China. Long explained that "Microbrachius" means little arms, but said scientists have been baffled for centuries by what these bony paired arms were actually there for. "We've solved this great mystery," he said. "They were there for mating, so that the male could position his claspers into the female genital area." In one of the more bizarre findings of the study, Long said the fishes probably copulated from a sideways position with their bony jointed arms locked together making them look more as if they were square dancing than having sex. "This enabled the males to maneuver their genital organs into the right position for mating," he said. Claim: Humans should thank ancient Scottish fish fossils for joy of sex.

Answer:
Scientists studying fossils have discovered that the intimate act of sexual intercourse used by humans was pioneered by ancient armored fishes, called placoderms, about 385 million years ago in Scotland.