Biology

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Realistic close-up of a vibrant Heliconius butterfly on a leaf in a rainforest, symbolizing longevity.
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Study finds some tropical Heliconius butterflies can live nearly a year and show slower physical decline

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A University of Bristol-led study reports that some Heliconius butterflies are among the longest-lived butterflies documented, with one individual recorded living 348 days, and that at least one species shows little measurable loss of muscle performance with age.

Scientists have identified a new fungus species that preys on zombie fungi in the tropical forests of Borneo. The discovery was made by researchers at the Universiti Malaysia Sabah.

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A newly identified spider in the rainforests of Queensland, Australia, constructs a conical snare that launches green tree ants upward into its web. The trap generates forces equivalent to 130 times gravity. Researchers documented the mechanism through high-speed filming in early 2023.

A new study suggests Earth's first animals evolved slowly because they reproduced asexually, limiting competition in ancient oceans. Researchers from the University of Cambridge say a later shift to sexual reproduction helped drive a surge in biodiversity during the Ediacaran period.

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Volunteers from two marine conservation groups encountered a great white shark during a dive in the Strait of Sicily. The sighting is considered especially rare in the Mediterranean Sea. It has drawn worldwide media attention and may aid conservation efforts.

A new study shows that deer keds, blood-feeding flies, scale back their visual capabilities after landing on a host and shedding their wings permanently. Researchers found that the insects reduce activity in key vision-related genes by about half. The change allows them to redirect energy toward feeding and reproduction.

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Researchers at the Hebrew University of Jerusalem report that a coordinated pattern of brain activity emerges several seconds before zebrafish swim toward another fish, and that the strength of the signal is linked to individual differences in sociability.

 

 

 

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