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MOSQUITOFISH THREAT TO NATIVE SPECIES
In 1905, Hawaii introduced mosquitofish to fight mosquitoes. More than 100 years later, the fish is threatening native wildlife- How a mosquitofish brought in to kill mosquito larvae became major freshwater ecosystem problem
- In the 1980s, Pablo Escobar brought 4 hippos to Colombia. Today, they have become the world's largest invasive hippo population
- Since 1997, Florida has released Australian insects to help control melaleuca in the Everglades; its invaded range has shrunk by nearly 75% alongside herbicide and mechanical removalIn Florida's Everglades, Australian insects played a crucial role in curbing the spread of invasive melaleuca trees. By targeting these tre...14 Aug, 2026, 04.20 PM IST
- In 1955, Hawaiʻi released a predatory snail to control giant African snails; it climbed into native forests and helped wipe out rare tree snailsIn Hawaii, the introduction of the rosy wolfsnail was intended to combat a pest, but it drastically backfired. Instead of targeting its int...14 Aug, 2026, 03.10 PM IST
- In 2014, Nevada agencies began poisoning 44 miles of waterway after hand-removal failed; they later released about 400 native troutThe recovery of a native trout population in a Nevada river spans fifteen arduous years, marked by extensive measures. After exploratory dr...14 Aug, 2026, 02.20 PM IST
- The hidden owl war: An invasive owl is conquering ancient forests, putting the threatened northern spotted owl at even greater riskInvasive barred owls are occupying ancient forests vital for northern spotted owls. These aggressive competitors concentrate in the exact h...13 Aug, 2026, 10.20 PM IST
- In 1884, Louisiana displayed South American water hyacinth for its lavender flowers; within decades, floating mats covered 126,000 Florida acres and blocked waterwaysOriginating in 1884, water hyacinth transformed into a significant nuisance for Florida by the 1950s. This aggressive floating plant overto...13 Aug, 2026, 04.10 PM IST
- In 1920, Washington planted 507 Norway maples along 16th Street to honor its war dead; the invasive species later spread into Rock Creek ParkIn 1920, Washington DC planted Norway maples as a tribute to World War I veterans. Initially seen as a living memorial, these trees became ...13 Aug, 2026, 04.00 PM IST
- In the early 1970s, Maui planted miconia for its spectacular purple leaves; its descendants spread across East Maui and threatened native forest watershedsIntroduced to Maui in the 1970s, Miconia calvescens, known as the velvet tree, has emerged as a significant invasive species. Its swift spr...13 Aug, 2026, 03.50 PM IST
- In the 1860s, America introduced burning bush as an ornamental; birds later helped spread it into forests across 21 invaded statesThe burning bush, native to Asia, became well-liked for its vibrant autumn hues. Birds transport its seeds, helping it escape confined land...13 Aug, 2026, 03.40 PM IST
- In the early 1900s, Hawaiʻi imported a thorny European shrub to feed sheep and fence pastures; it now forms 6-foot walls that fuel fires and sprout againGorse, introduced to Hawai'i around 1900 for sheep fodder and fences, has become a persistent invasive problem. This spiny shrub thrives in...13 Aug, 2026, 03.00 PM IST
- Gujarat's Deesa to get Asia's first desert-themed night safari & zooGujarat's Deesa will soon host Asia's first desert-themed drive-through night safari and zoological park. This expansive park will cover ap...12 Aug, 2026, 11.33 PM IST
- In the mid-1980s, a New Zealand botanist left gorse on abandoned farmland; native trees gradually grew through it and shaded it outA botanist left gorse to restore farmland on New Zealand's Banks Peninsula. This spiky shrub provided shelter and moisture for native seedl...12 Aug, 2026, 08.00 PM IST
- In 1963, federal engineers completed Glen Canyon Dam in Arizona for water storage and power, which turned the Colorado River colder and disrupted native fish reproductionGlen Canyon Dam altered the Colorado River's temperature and flow significantly. This change negatively affected the endangered humpback ch...11 Aug, 2026, 07.29 PM IST
- In 1977, California removed the last herbivores from San Miguel Island after years of overgrazing. Decades later, the barren landscape produced a stunning ecological comeback, transforming into an island covered with native vegetationSan Miguel Island tells a powerful conservation story. Once called a “barren lump of sand,” the 9,500-acre California island suffered more ...11 Aug, 2026, 06.59 PM IST
- From 1877, officials stocked over 33 million fish in Yosemite for anglers, altering fishless lakes and reducing habitat for native yellow-legged frogsYosemite's lakes, once fishless, received over 33 million stocked fish between 1877 and 1990. Introduced trout preyed on native species and...11 Aug, 2026, 04.55 PM IST
- In 1998, scientists created the benchmark for documenting Honduras' mammals. Years later, an eight-year international study produced the country's most comprehensive wildlife inventory, confirming 227 native species and suggesting nearly 30 more remain undiscoveredA groundbreaking eight-year study has identified 227 native mammal species in Honduras, utilizing over 300,000 records for analysis. Though...09 Aug, 2026, 01.21 AM IST
- The hidden danger inside Spain's eucalyptus forests that worries scientistsSpain's eucalyptus plantations appear green but support fewer native birds and insects. These monocultures lack the diverse vegetation and ...05 Aug, 2026, 08.55 PM IST
- In 1922, California introduced mosquitofish to eat mosquito larvae; within four years, they were in 30 counties and were later linked to native-species declinesIn 1922, California introduced mosquitofish in hopes of controlling mosquito populations. Although they were initially viewed as a solution...01 Aug, 2026, 05.54 PM IST
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