How do Flies Use Their Halteres to Balance?

Housefly taking off against a greenish background.

HOW DO FLIES USE HALTERES TO BALANCE? Researchers have long known that when you surgically remove the halteres, a fly can take off but fails to balance in midair. Halteres are tiny structures that look like the second set of wings. How do halteres work? A Ph.D. candidate in biology, Alexandra Yarger, from Case Western…

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Why Do Birds Migrate?

Pair of wandering albatrosses on the nest, socializing, with snowy mountains and light blue ocean in the background, South Georgia Island, Antarctica

WHY DO BIRDS MIGRATE? Pair of wandering albatrosses on a nest Albatrosses in the air When birds travel between breeding and wintering grounds every season the movement is called migration. The move is usually along an established path often dictated by natural barriers such as the Caribbean Sea and the Mediterranean Sea. The birds often…

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Why are Moths and Bright Lights Inseparable?

WHY ARE MOTHS AND BRIGHT LIGHTS INSEPARABLE? Moth Moths will go round and round bright lights until morning or when they drop. They seem oblivious to the presence of predators such as geckos. Even the heat of the bulb does not deter them. The moths can stay near a bright light for days until it…

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Two-Headed Snakes—is it a Myth or Fact?

A snake with two heads

TWO-HEADED SNAKES—IS IT A MYTH OR FACT? A two-headed copperhead snake was discovered recently in Woodbridge, Virginia. The snake has a single stomach, but its two heads rarely co-operate. The snake was collected by Dr. Kleopfer, from the Virginia Department of Game and Inland Fisheries. He was surprised to find the snake in the wild.…

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“Caterpillars Are on the Menu Tonight”

Ngala edible caterpillars in a frying pan.

“CATERPILLARS ARE ON THE MENU TONIGHT” Ngala edible caterpillars, DRC; Credit: Wikimedia Commons Fried cricket, Thailand Our host from the Democratic Republic of Congo said the above words. At first, I found the thought of eating caterpillars was unpalatable to me. You may feel the same way. However, it is not as bad as you…

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Odor Memory—the Secret of Desert Ants’ Survival

Cataglyphis fortis ant on sand.

ODOR MEMORY—THE SECRET OF DESERT ANTS’ SURVIVAL? Cataglyphis fortis ant Cataglyphis fortis is an ant found in the North African desert. It uses its sense of smell to find food and the way to its nest. You see similar ants in deserts around the world. Navigating in the vast salt pans of the Tunisian Sahara…

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Female Dance Flies—Why Do They Inflate Their Bodies?

Dance fly on flower

FEMALE DANCE FLIES—WHY DO THEY INFLATE THEIR BODIES? Dance fly Female dance flies of the species Rhamphomyia longicauda suck in air and inflate their bodies to attract males. According to a new study by Rosalind Murray at the University of Toronto Mississauga and her colleagues, male dance flies are more attracted to larger females with hair-like…

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