Aggressive green wall lizards eliminate ancient color variants

26 Mwezi wa nne, 2026

Imeripotiwa na AI

Researchers have discovered that aggressive green wall lizards, dubbed 'Hulk' lizards, are rapidly outcompeting and eliminating yellow and orange color morphs that coexisted for millions of years. The common wall lizard, Podarcis muralis, across the Mediterranean now shows only white-throated individuals in many populations. A study analyzing over 10,000 lizards revealed this shift in evolutionary dynamics.

For millions of years, populations of the common wall lizard (Podarcis muralis) maintained a balance of three throat color morphs: white, yellow, and orange. Each morph represented distinct survival strategies, such as territorial competition and mate attraction, fostering coexistence across the Mediterranean region. Tobias Uller, professor of evolutionary biology at Lund University, noted, 'We are seeing how the coexistence of several different color morphs, something that has been stable for millions of years, is being lost over a very short evolutionary time scale.'

Makala yanayohusiana

Study solves mystery of reptile bone armor evolution

A new evolutionary analysis has shown that skin bones in reptiles developed independently across multiple lizard lineages rather than from a single ancestor. Researchers traced the trait over 320 million years using fossils and computational methods. Australian goannas stand out for losing the armor and then regaining it millions of years later.

Pink katydid transforms into green camouflage in Panama

3 Mwezi wa tano, 2026 Imeripotiwa na AI

Scientists observed a rare tropical katydid changing color from bright pink to green over 11 days in Panama. The transformation helps the insect mimic young rainforest leaves that start pink before maturing green. Researchers describe it as a survival strategy rather than a mutation.

Europe

Carnivorous banana fly genome mapped from museum specimen

Sayansi

Study finds asexual reproduction slowed early animal evolution

Sayansi

Study uncovers squid survival during Earth's mass extinction

Scientists discover new Pink Floyd-inspired spider in Colombia

Researchers from South American institutions have identified a new spider species, Pikelinia floydmuraria, named after the band Pink Floyd and its habitat on building walls. Despite measuring just 3 to 4 millimeters, the spider hunts ants up to six times its body size and targets urban pests like mosquitoes and flies. The findings appear in the journal Zoosystematics and Evolution.

Paleontologists discover 275-million-year-old twisted-jaw species

1 Mwezi wa tano, 2026 Imeripotiwa na AI

Scientists have identified a new species of ancient animal, Tanyka amnicola, from fossils unearthed in a dry riverbed in Brazil. Dating back 275 million years, this stem tetrapod featured a highly unusual twisted jaw suggesting it ground plant material. The discovery sheds light on early Permian life in Gondwana.

Alhamisi, 18. Mwezi wa sita 2026, 19:18:42