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Tag: "floor" at biology news

Study finds surfing safer than soccer

...ncreases as it grows in height. In addition, a sea floor with a sandy bottom is much more forgiving upon impact than one covered with reefs or rocks," says Nathanson. The paper cites that establishing an injury rate for surfing is not just of academic or general interest, but also has implications for t...

How trees manage water in arid environments

...wn said, if you drop a piece of ice on the kitchen floor and ignore it, in a few minutes it will be gone --...ted. In Indiana, if you drop a piece of ice on the floor and ignore it, the water will just stay there until it's wiped up. In Arizona, she said, if you n...

World's largest flower evolved from family of much tinier blooms

...nventional methods." Found growing on the jungle floor in parts of southeastern Asia, rafflesia is unusual in more than just its flower's size. A parasite, it derives its nutrients from a plant in the grapevine family and lacks leaves, stems, or roots. Even more shocking is the plant's carcass-like appea...

Mystery of fossilized trees is solved

.... Branches from the trees would have fallen to the floor and decayed, providing a new food chain for the bugs living below. "This was also a significant moment in the history of the planet. The rise of the forests removed a lot of Carbon Dioxide from the atmosphere. This caused temperatures to drop and ...

Microfossils unravel climate history of tropical Africa

...al properties. When such molecules sink to the sea floor and are buried in sediments where oxygen does not penetrate, they can be preserved for thousands of years. The ratios between the different molecules from the algal cell membrane can be used to approximate the past temperature of the sea surface. The...

In presence of fragrant cleaning products, air purifiers that emit ozone can dirty the air

...r experiment in a sparsely furnished office with a floor area of about 11 square meters. They placed an ozone-emitting air purifier in the middle of the room along with a large fan to better mix the air. At timed intervals, limonene vapor was injected in the room. Samples of the air were taken about one me...

Genes and genius: Researchers confirm association between gene and intelligence

...ild holding a vase, the vase broken to bits on the floor and the child crying. The person taking the test would have to put those pictures into an order that tells the story of how the child dropped the vase and broke it and then cried." The researchers studied DNA gathered as part of the Collaborative ...

Microbes compete with animals for food by making it stink

...e not passively waiting on the bottom of the marsh floor for the rest of the community to deliver feces and other wastes that are not useful to anybody else," he added. "They are also trying to grab what they can at the start." Hay hopes the research will make ecologists think more critically about the b...

Ocean seep mollusks may share evolutionary history with other deep-sea creatures

...exist at hydrothermal vents, fissures in the ocean floor where water is superheated by magma lurking just below the crust. Although seep and vent fluids are a poisonous brew for most species, animals such as giant tube worms and the mollusks studied by Kiel and Little thrive with the help of the symbiotic...

Ohio University researchers discover evolutionary oddity in flamingos

...arge oval masses of erectile tissue located on the floor of the mouth on either side of the tongue. "N...od, they stiffen, strengthening and supporting the floor of the mouth. "We suspect this stabilizes the mouth and tongue and helps with the peculiar way that...

Arctic expedition will investigate alien-like glacier

...ot water around geothermal vents deep in the ocean floor but are seldom observed living in cold environments. Beauchamp, Grasby, Gleeson and U of C graduate student Marie-Eve Caron leave for the glacier on June 21. From Ottawa, they will fly to Resolute, where they will be flown to the Eureka research sta...

Creating a window on 'oceans in motion'

...ne of many acoustic receivers arrayed on the ocean floor along the coastal shelf, akin to the process of sc...ar bears to penguins ?and priority areas for ocean floor acoustic monitoring arrays. "These are key questions: which species do we want to track and exactly...

UF scientists discover evolutionary origin of fins, limbs

Performance on the dance floor may not always show it, but people are rarely born with two left feet. We have genes that instruct our arms and legs to grow in the right places and point in the right directions. They also provide for the spaces between our fingers and toes and ever...

Marine 'dead zone' off Oregon is spreading

...olved oxygen sensors have been deployed on the sea floor both close to shore and in 260 feet of water off Newport, some of which are sending data in near real-time. In addition, a new underwater unmanned vehicle equipped with sensors to measure temperature, salinity, chlorophyll and dissolved oxygen is ro...

UAB researchers confirm HIV-1 originated in wild chimpanzees

...ecal samples collected by trackers from the forest floor in remote jungle regions of Cameroon, Hahn and her colleagues were able to detect SIVcpz-specific antibodies and nucleic acids (viral genetic information) in as many as 35 percent of chimpanzees in some ape communities. The UAB investigators went o...

In a technical tour de force, Salk scientists take a global view of the epigenome

...NA fragments that span the Arabidopsis genome like floor tiles. The researchers first isolated all methylated DNA from plant cells and located where those fragments fell on the array. Then they determined which genes were active and which ones weren't in order to compare gene activation with the methylatio...

Underwater listening devices yield discoveries about endangered large whales

...hat are held at different distances from the ocean floor and are equipped with disk drives able to store tens of gigabytes of data. This allows them to operate for months at a time before they are recovered and the data accessed. Acoustic surveys using the devices have been conducted in the Gulf of Alaska,...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...g in the soft sediments that cover much of the sea floor and microscopic bacteria and viruses that live throughout the ecosystem. While most are invisible to the human eye, they are collectively major players in the web of ocean life." The Census of Marine Life is a global network of researchers in more ...

UMaine teams with fishermen to study affects of trawling on seafloor ecology

...undfish trawling on the complex ecology of the sea floor in the Gulf of Maine. Based on the gradual increases in complexity and diversity of seafloor communities that have been protected from bottom trawling for two, four, and six years, Watling estimates that it will take roughly a decade for the surface...

Carbon cycle was already disrupted millions of years ago

... release of carbon from stocks stored in the ocean floor or peats and bogs. The atmospheric carbon dioxide concentration is increasing as a consequence of the large-scale use of fossil fuels in the industrial era. This has apparently brought about a stronger relative increase in the light carbon isotope ...

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