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SEA OTTER POPULATION RECOVERY
In 2015, scientists released fluorescent dye into Florida’s Silver River: Here’s what they discoveredA 2015 University of Florida experiment used five gallons of fluorescent dye to track water movement through a 5.1-mile section of Florida’...- In 1980s, scientists moved 140 sea otters to a California island as an insurance policy; most disappeared, but the population eventually reboundedIn the late 1980s, wildlife officials initiated a relocation effort by moving southern sea otters to San Nicolas Island. Initially, many of...
- In 2024, four dams were removed from an American river. Over 400 miles of Salmon habitat reopened. Scientists are now watching an ecosystem rebuilding itselfFour hydroelectric dams on the Klamath River were removed in 2024. This project opened over 400 miles of historic salmon habitat. Indigenou...
- In 2019, this California sea creature was heading toward extinction; scientists raised babies in captivity and returned them to the oceanWhite abalone faced extinction due to overfishing and sparse populations. Scientists initiated a captive-breeding program, producing millio...
- In 1963, officials counted just 417 nesting pairs of bald eagles as DDT drove them toward extinction. 44 years later, 9,789 pairs helped secure national symbol delistingThe bald eagle, once near extinction, has made a remarkable recovery. Habitat protection and the banning of DDT significantly aided their p...
- In 2010, federal wildlife trustees secured $2.65 million for San Francisco Bay tidal marsh restoration. 5 years later, tidal waters returned to 1,250 acres at Cullinan RanchSan Francisco Bay tidal marshes are being restored for a reason that reaches far beyond wildlife. These wetlands filter polluted water and ...
- Rising sea threat comes closer home as UN flags millions in Kolkata, Mumbai at riskA United Nations report highlights millions in Kolkata and Mumbai face immediate risk of losing homes. Rising sea levels threaten coastal i...
- In 1987, U.S. Fish and Wildlife Service captured 27 wild California condors to save them from extinction. 32 years later, the recovery program hatched its 1,000th chick, marking one of North America’s greatest wildlife recoveriesCalifornia condors faced extinction with only twenty-seven birds remaining. Conservationists captured all remaining birds for a successful ...
- In 1918–1921, one dam built on California's Carmel River provided water storage but blocked fish runs; in 2015 it came down, reopening 25 miles of habitat for steelhead troutA century-old dam on California's Carmel River was removed, restoring fish spawning grounds. Crews rerouted the river and dismantled the st...
- In 2014, East Bay Regional Park District began restoring Dotson Family Marsh, creating channels that reconnected it to the San Francisco Bay. 6 years later, tidal wetlands had returnedHistory of Dotson Family Marsh helps explain why its recovery matters. The broader 150-acre property was acquired by the East Bay Regional ...
- In 1966, scientists wiped out almost every insect on tiny islands in Florida. Within days, wildlife began returningEcologists Daniel Simberloff and Edward O. Wilson conducted a groundbreaking experiment in 1966. They removed nearly all arthropods from ti...
- In 2014, Arizona used fish poison to clear an invasive fish from Virgin River after mechanical removal methods failed. Then the red shiner came backFor years, conservationists waged a relentless battle against the invasive red shiner in the Virgin River. Initial rotenone treatments show...
- In 1987, Denmark launched restoration of 2,200 hectares around the Skjern River. 19 years later, SPA status arrived in 2006 as wildlife returned to the restored wetlandsDenmark restored the Skjern River wetlands after agricultural decline and pollution. The project re-meandered over twenty kilometers of riv...
- In 2012, Alaska counted 58 pigeon guillemots on Naked Island as mink threatened nests. 11 years later following restoration, their numbers had jumped nearly 400%, reaching 288 birds in 2023Pigeon guillemot numbers on Alaska's Naked Island Group have significantly increased. This recovery followed a multiyear effort to remove i...
- Georgia won UNESCO World Heritage status for the 636-square-mile Okefenokee Swamp to bolster conservation; the result raised global attention around a wetland home to 15,000 alligators and hundreds of speciesGeorgia's Okefenokee Swamp received UNESCO World Heritage status. This recognition highlights its rich biodiversity and vital role as a car...
- Beginning in the 1900s, U.S. hunters imported Eurasian wild boar for sport; today’s feral swine threaten firefly larvae and turtle nests across the SoutheastWild pigs are destroying firefly larvae and turtle eggs in southeastern parks. These invasive animals root up the soil, disrupting delicate...
- In 1992, Congress authorized the removal of 2 dams that had blocked salmon for a century. 24 years later, the Elwha River once again flowed freely from the Olympic Mountains to the seaElwha River Restoration changed one of America’s most remarkable river recovery stories. Two dams once blocked salmon from reaching upstrea...
- In the late 1800s, California introduced red foxes for hunting and fur farms; at Seal Beach, they drove light-footed Ridgway's rails down to just 5 pairs in 7 yearsIn the late 1800s, non-native red foxes wreaked havoc on the population of Ridgway's rails, bringing them perilously close to extinction. F...
- Two Parsi-owned Perry Cross Road bungalows to be torn down for Rs 1,500 crore luxury projectBungalows on Perry Cross Road in Bandra, Gladhurst and Kavas Lodge, are set to be torn down by Supreme Universal to make way for two luxury...
- A Florida couple bought a 45-acre swamp to save it from development; 15 years later, 275 wood storks were nesting there in a thriving wildlife havenA Florida couple purchased a cypress swamp to protect its wildlife habitat. They actively managed the land, creating a thriving sanctuary f...
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