transport: Submarines in the United States Navy

Evidence: 100 • authority: 72

There are three major types of submarines in the United States Navy: ballistic missile submarines, attack submarines, and cruise missile submarines. All submarines currently in the U.S. Navy are nuclear-powered. Ballistic missile submarines have a single strategic mission of carrying nuclear submarine-launched ballistic missiles. Attack submarines have several tactical missions, including sinking ships and subs, launching cruise missiles, and gathering intelligence. Cruise missile submarines perform many of the same missions as attack submarines, but with a focus on their ability to carry and launch larger quantities of cruise missiles than typical attack submarines. The submarine has a lon…

Evidence: 59 • authority: 72

The history of the submarine goes back to antiquity. Humanity has employed a variety of methods to travel underwater for exploration, recreation, research and significantly, warfare. While early attempts, such as those by Alexander the Great, were rudimentary, the advent of new propulsion systems, fuels, and sonar, propelled an increase in submarine technology. The introduction of the diesel engine, then the nuclear submarine, saw great expansion in submarine use — and specifically military use — during World War I, World War II, and the Cold War. The Second World War use of the U-Boat by the Kriegsmarine against the Royal Navy and commercial shipping, and the Cold War's use of submarines b…

Evidence: 45 • authority: 72

The United States Navy built permanent and temporary submarine bases around the world to maintain its fleet of submarines and serve the needs of the crews. Submarine bases are military bases that offer good fleet anchorage and are designed to refuel and resupply submarines. The peak number of US submarine bases was during World War II, as the submarine was well suited for fighting in the vast Pacific War, often in enemy waters. Many of the United States submarine bases were closed after the war.

Evidence: — • authority: 80

First documented case of terrestrial cold-stunning in post-emergent sea turtle hatchlings during a cold snap

Evidence: — • authority: 80

First Documented Record of Nesting by the Olive Ridley Turtle (Lepidochelys olivacea) in Ecuador

Evidence: — • authority: 80

Daily briefing: The first documented case of tool use in cattle

Evidence: — • authority: 88

First documented record of the leatherback turtle (Dermochelys coriacea) from Djibouti waters. Abstract A subadult leatherback turtle was documented in the Gulf of Goubet (Djibouti) during a research expedition. This sighting confirms for the first time previous anecdotal observations of the occurrence of the leatherback turtle, Dermochelys coriacea (Vandelli, 1761), in Djibouti waters. Coupled with observations from fishers, this finding underlines the urgent need to carry out research programs to evaluate the species habitat use within Djibouti waters, and to review the species distribution in the Gulf of Aden. Although marine turtles are protected in Djibouti, illegal harvest and entangl…

Evidence: — • authority: 88

First documented occurrence of Pseudamia sp. from the marine cave environment of Turtle Tomb, Sipadan Island, Sabah, Malaysia. Abstract A species of Pseudamia Bleeker, 1865 (Apogonidae) is reported from the marine cave environment of Turtle Tomb, Sipadan Island, Sabah, Malaysia, based on underwater video observations. The fish was recorded within the cave during underwater exploration and was identified to the genus level based on its external morphological characters and overall body form visible in the video footage. No live specimens were collected because Turtle Tomb is located within the protected marine park of Sipadan Island, where the collection or removal of live marine organisms i…

Evidence: — • authority: 72

The United States military began executing airstrikes on vessels in the Caribbean Sea in September 2025, described by the administration of President Donald Trump as part of an effort to fight the flow of illicit drugs from Latin America to the US. In October, the strikes expanded to include vessels in the Eastern Pacific Ocean. The Trump administration has alleged, without producing public evidence, that the vessels were operated by groups it designated as narcoterrorists, including the Venezuelan organization Tren de Aragua and the Colombian far-left guerilla group National Liberation Army. As part of what was later unveiled as Operation Southern Spear, the US began deploying Navy warship…

Evidence: — • authority: 72

On June 18, 2023, Titan, a submersible operated by the American tourism and expeditions company OceanGate, imploded during an expedition to view the wreck of the Titanic in the North Atlantic Ocean off the coast of Newfoundland, Canada. Aboard the submersible were Stockton Rush, the American chief executive officer of OceanGate; Paul-Henri Nargeolet, a French deep-sea explorer and Titanic expert; Hamish Harding, a British businessman; Shahzada Dawood, a Pakistani-British businessman; and Dawood's son, Suleman. Communication between Titan and its mother ship, MV Polar Prince, was lost 1 hour and 33 minutes into the dive. Authorities were alerted when it failed to resurface at the scheduled t…

Evidence: — • authority: 72

Isaac Doolittle (August 3, 1721 – February 13, 1800) was an early American clockmaker, inventor, engineer, manufacturer, militia officer, entrepreneur, printer, politician, and brass, iron, and silver artisan. Doolittle was a watchmaker and clockmaker, known for making and selling at his shop in New Haven, Connecticut, one of the first brass wheel hall clocks in America, where he also crafted and sold scientific instruments, and is regarded as "the first native practitioner" of silversmithing in the Connecticut Colony. He was also an engraver and printer of both legal forms and currency, and became the first American to design, manufacture, and sell a printing press in 1769. Somewhat late i…

Evidence: — • authority: 80

Bereaved and aggrieved: combat motivation and the ideology of sacrifice in the First World War