The April 16 attack was claimed by Tehreek-e-Taliban Pakistan (TTP), commonly known as the Pakistan Taliban, and its fighters then opened fire from all sides of the Sarki Piyala police checkpost in Hangu district, about 30km (18 miles) from the border with Afghanistan and a hotbed of deadly attacks by armed groups, mainly the TTP. "There was a great deal of fear because we were in the middle of a battle. At that moment, we did not even know whether we would make it back home alive," Khan told Al Jazeera. To defend against such attacks, the police in Hangu came up with an unlikely, low-cost solution - fishing nets strung several metres overhead between the checkpost's rooftops and perimeter walls, forming a kind of aerial ceiling. Simple in construction and resembling what fishermen use for their work, the netting was first installed two months ago, according to the local police.

A growing trend of supermarkets selling a cheaper, less nutritious alternative to tinned mackerel is an example of skimpflation, a consumer group has said. Princes - which supplies major supermarkets - has substituted the fish for jack mackerel, an entirely different species also being sold by Lidl. The switch has been spurred by dwindling stocks of Atlantic mackerel after years of overfishing, with its Chilean counterpart more sustainable and a third of the cost. It's a real concern when manufacturers quietly downgrade everyday staples like these as shoppers can end up paying the same price for a product that delivers significantly less nutritional quality, Sue Davies, head of food policy at Which?, said. Jack mackerel contains about half as much omega-3 and around a third as much vitamin B12 as traditional mackerel.

The families of eight Ecuadorian fishermen who vanished at sea after reporting US surveillance are demanding answers. They believe the men could be victims of a US drone strike or detention. UN approves new map showing Africa's true size Did Israel's destruction of Gaza worsen its water crisis? Judge declares mistrial in Lindsay Clancy children's murder case

A two-toned lobster like Ethel is 1 in 50 million, while a blue one like Gertrude is 1 in 2 million. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Ethel the split-colored lobster (left) and Gertrude the blue (right) were donated to the Gulf of Maine Research Institute. Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy .

'The fish is in the right' says man bitten by blue shark while angling A man who was bitten by a shark on a boat off the coast of County Waterford is due to undergo surgery. Sebastian Achim was part of a crew tagging sharks for research off Ram Head, Ardmore, when the incident happened on Tuesday. The crew, who were experienced fishermen, were catching the sharks, tagging them and then releasing them back into the sea. Later in the day, Achim caught another shark and was bitten in the leg after pulling it into the boat. 'The fish is in the right' Speaking to RTÉ Radio One's Morning Ireland, external programme, Achim said the plan was to hook the shark, tag it and release it.

The famed archipelago may be home to a smooth hammerhead shark nursery. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy . British naturalist Charles Darwin (and maybe even his mushroom-hunting daughter) almost certainly would be excited about yet another exciting discovery in his beloved Galápagos Islands.

The gentle giants are the world's largest fish--and love the tropics. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy . Enormous animals have called the Sunshine State home for centuries.

The whale was entangled in crab pot lines at Endicott Arm near Juneau. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. The NOAA Fisheries response team uses poles with specialized knives to cut entangling lines. Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy .

The whale sustained some injuries during the ordeal, but should recover. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. View of the whale after being freed. Note the red wounds from its most recent entanglement near the tail and the deep, but healing wound, near its head from a prior entanglement. Center for Coastal Studies image, taken under NOAA permit 24359.

Models of hybrid dynamical systems are widely used to answer questions about the causes and effects of dynamic events in time. Unfortunately, existing causal reasoning formalisms lack support for queries involving the dynamically triggered, discontinuous interventions that characterize hybrid dynamical systems. This mismatch can lead to ad-hoc and error-prone causal analysis workflows in practice. To bridge the gap between the needs of hybrid systems users and current causal inference capabilities, we develop a rigorous counterfactual semantics by formalizing interventions as transformations to the constraints of hybrid systems. Unlike interventions in a typical structural causal model, however, interventions in hybrid systems can easily render the model ill-posed. Thus, we identify mild conditions under which our interventions maintain solution existence, uniqueness, and measurability by making explicit connections to established hybrid systems theory. To illustrate the utility of our framework, we formalize a number of canonical causal estimands and explore a case study on the probabilities of causation with applications to fishery management. Our work simultaneously expands the modeling possibilities available to causal inference practitioners and begins to unlock decades of causality research for users of hybrid systems.