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Wed, 20 Mar 2019 12:06:03 EDT
Butterfly numbers down by two thirds
Meadows adjacent to high-intensity agricultural areas are home to less than half the number of butterfly species than areas in nature preserves. The number of individuals is even down to one-third of that number.
Wed, 20 Mar 2019 12:05:47 EDT
It's spring already? Physics explains why time flies as we age
Researchers have a new explanation for why those endless days of childhood seemed to last so much longer than they do now -- physics. According to the theory, the apparent temporal discrepancy can be blamed on the ever-slowing speed at which images are obtained and processed by the human brain as the body ages.
Wed, 20 Mar 2019 11:06:27 EDT
Supercomputer simulations shed light on how liquid drops combine
High performance computing has revealed in detail how liquid droplets combine, in a development with applications such as improving 3D printing technologies or the forecasting of thunderstorms.
Wed, 20 Mar 2019 11:06:24 EDT
Coral reefs near equator less affected by ocean warming
Ocean warming is threatening coral reefs globally, with persistent thermal stress events degrading coral reefs worldwide, but a new study has found that corals at or near the equator are affected less than corals elsewhere.
Wed, 20 Mar 2019 10:22:21 EDT
Ant larvae fight the offspring of parasitic queens
The eggs of a parasitic ant queen living off a foreign species may end up as food for the larvae of the host species.
Wed, 20 Mar 2019 10:22:13 EDT
Active substance from plant slows down aggressive eye cancer
An active substance that has been known for 30 years could unexpectedly turn into a ray of hope against eye tumors. This is shown by a new study. The plant leaves of which contain the tested substance is anything but rare: At Christmas time you can find it in every well-assorted garden center.
Wed, 20 Mar 2019 10:22:10 EDT
How fluid viscosity affects earthquake intensity
Scientists have demonstrated that the viscosity of fluids present in faults has a direct effect on the intensity of earthquakes.
Wed, 20 Mar 2019 10:21:58 EDT
Local extinction of Southern California mountain lions possible within 50 years
Two isolated mountain lion populations in southern California's Santa Ana and Santa Monica Mountains are at risk of local extinction, perhaps as soon as within 50 years, according to a study published in the journal Ecological Applications. The extinction risk is due to low genetic diversity and mortality that affects the stability of the population. But increasing connectivity could help.
Wed, 20 Mar 2019 10:21:17 EDT
The recent spread of coyotes across North America did not doom deer populations
Coyotes eat deer, but not enough to limit the deer population at a large scale. A new study of deer numbers across the eastern United States has found that the arrival and establishment of coyote predators has not caused the number of deer harvested by hunters to decline.
Wed, 20 Mar 2019 10:21:14 EDT
Effects on offspring of epigenetic inheritance via sperm
As an organism grows and responds to its environment, genes in its cells are constantly turning on and off, with different patterns of gene expression in different cells. But can changes in gene expression be passed on from parents to their children and subsequent generations? Researchers have now demonstrated that epigenetic information carried by parental sperm chromosomes can cause changes in gene expression and development in the offspring.
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