Alaska officials are warning of a sharp increase in the number of invasive green crabs in the north of the country and urging people to look out for their shells with a "5-3-5" pattern.

Interesting to know

• Georgia officials are urging residents to remove invasive, fast-spreading lizards that are spreading across the state.
  NEED TO KNOW: Argentine black-and-white tegus, an invasive lizard native to South America, are spreading across several Georgia counties. These reptiles pose a threat to local wildlife by eating...
• Georgia officials are urging residents to kill a 1.2-meter-long invasive lizard that is spreading across 30 counties.
  A large lizard up to 1.2 meters long is something most Georgia residents wouldn't expect to see in their yard or neighborhood. However...
• Conservationists are urging residents to kill invasive Argentine tegus, which spread diseases.
  Georgia residents probably don't expect to find a four-foot-long reptile native to South America in their backyards. However, conservation officials are now warning residents to...
• Ohio officials warn that spotted lanternfly eggs have survived the winter and a new surge in numbers is expected this summer.
  Ohio officials are warning residents to prepare for another busy spotted lanternfly season after winter temperatures failed to kill the invasive insect's eggs.
• Authorities have removed 50 million pounds of giant invasive carp from the Illinois River, marking a major achievement for the Great Lakes region.
  Invasive and dangerous carp living in the Illinois River can grow to sizes exceeding 100 pounds (about 45 kilograms), but officials say important progress has been made...
• Colorado officials are warning of an infestation of Asian jumping worms that could cause irreparable damage to soil.
  A new invasive pest has emerged in Colorado, capable of silently damaging the soil beneath people's feet. Asian jumping worms have been discovered along Colorado's Rocky Mountains, causing...
• Authorities are urging people in England to stay away and report sightings of Asian hornets after they were spotted in Yorkshire.
  A report of an Asian yellow-legged hornet in Ripon, England, which was described as "credible", has led to authorities in Yorkshire issuing an alert, and now...
• Authorities are scrambling to contain Long Island's first snakehead sighting after the air-breathing predator was discovered in a Suffolk pond.
  An invasive fish capable of moving on land has been discovered in Suffolk County, prompting New York State officials to take immediate action to protect one of the world's most famous...
• Texas officials have withdrawn a proposal that would have required cougar killings to be reported within 24 hours.
  Texas has rejected a proposal that would have required hunters to report information about one of the state's most elusive predators. According to the Texas Farm Bureau, the Texas Parks and Wildlife Commission...
• 50 million pounds of invasive fish species have been removed from the Illinois River.
  While swimmers and boaters don't have to fear sharks or giant squid in the Great Lakes basin, invasive fish the size of large dogs are living in freshwater....
• 250 endangered turtles face losing their last habitat in the United States as Arizona officials develop an emergency rescue plan.
  NEED TO KNOW: Conservationists are developing an emergency plan to save the endangered Sonoyta pond turtle from planned border wall construction. In Quitobaquito Springs, the only...
• Authorities have reopened an investigation into a salmonella outbreak after recalled moringa products sickened 119 people in 36 states.
  Health authorities have reopened their investigation into a salmonella outbreak linked to moringa products after 22 more cases were reported. According to Food Safety News,...
• The baby blue crab population in the Chesapeake Bay has grown by 121% after several years of unexplained decline.
  For years, the history of blue crabs in the Chesapeake Bay has been characterized by uncertainty, declining numbers, and a vexing question that scientists still can't answer...
• Most Americans believe the United States and other countries will not do enough to prevent the worst effects of climate change.
  A new Pew Research Center poll finds that most Americans are unsure whether the United States or other countries will do enough to...
• The mystery of Alaska's orange rivers has finally been solved.
  Alaska's Arctic rivers are facing a serious problem—they've turned orange. Previously clear rivers are now becoming turbid and orange due to iron particles, and...
• Experts warn that prostate cancer screening programs are insufficient.
  Experts warn that the government's prostate cancer screening plans are inadequate. New Health Secretary James Murray on Tuesday accepted advisers' recommendations to limit routine screening to...
• Several teachers at the same high school have been diagnosed with breast cancer, prompting an environmental investigation.
  NEED TO KNOW Several teachers at a Massachusetts high school have been diagnosed with breast cancer or precancerous conditions, prompting an investigation into possible factors...
• Scientists warn that a promising anti-aging drug may cause brain damage.
  The experimental drug combination dasatinib and quercetin (abbreviated D+Q) is one of the most promising anti-aging therapies currently in development. The drug is not yet approved for...
• Tourists are warned about the spread of environmental threats to popular beaches.
  Tourists hoping to spend a day on the beach in Playa del Carmen, a popular coastal resort town near Cancun, Mexico, were disappointed to find the sand almost completely covered...
• The Louisiana coastline could move 30 miles inland, and researchers are calling for a plan of action before the next forced exodus.
  Louisiana's coastline has never recovered, but a new study suggests human-induced warming is accelerating the process, and the state may have some left...