2023年8月8日 · Our results show that sufficient lift is generated to offset the butterfly weight at higher altitudes, aided by the wake-capture mechanism, which is a nonlinear wing-wake interaction mechanism, commonly seen for hovering animals.

2021年11月13日 · Monarch butterfly hovering above blooming sylphium. Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people.

2024年6月7日 · Among the numerous butterflies migrating south, occasionally a unique monarch will appear: one that is missing a head. Still flying around, albeit clumsily and often in one direction, these headless butterflies seemingly always have pristine wings, adding to the mystery.

2025年1月27日 · The monarch butterfly (Danaus plexippus) is the iconic species of the Greater California bioregion , located in the North Pacific Coast subrealm of Northern America. Habitat and environment. Monarch butterflies are found primarily in North America, though smaller populations exist in parts of South America, Australia, New Zealand, and Hawaii.

In this study, backward flight was appropriated for take-off from vertical and horizontal surfaces, ‘normal’ and accelerating flight, obstacle avoidance, turning and escape response by the monarch butterfly (D. plexippus) in the laboratory.

2021年3月19日 · Monarchs migrate 4000 km at high-altitudes to their overwintering mountains in Central Mexico. The air is thinner at higher altitudes, yielding reduced aerodynamic drag and enhanced range. However, the lift is also expected to reduce in lower density conditions.

2023年12月1日 · Monarch butterflies (Danaus plexippus) have become a superb model system to unravel how the tiny insect brain controls an impressive navigation behavior, such as long-distance migration.

1 天前 · A butterfly sits on a leaf at Monarch Grove Sanctuary in Pacific Grove, Calif., on Nov. 10, 2021. Nic Coury / AP These butterflies suffer when the mercury gets up to 100 degrees Fahrenheit and any ...

Every fall, millions of monarch butterflies migrate to Mexico where they overwinter. In the spring, the same butterflies fly back to the United States where they mate, lay their eggs, and die. Their offspring continue the journey north to feed on emerging milkweeds.

2002年7月9日 · Monarch butterflies (Danaus plexippus) from the eastern North American population make remarkably long migratory journeys in the fall, some of which extend more than 3,500 km from eastern Canada and the northeastern United States to Mexico.