Get a grip.Some tree frogs tree frog, name for any of the small tree- or shrub-inhabiting frogs of the family Hylidae, characterized by an adhesive disk on the tip of each of the clawlike toes. can stick sideways to tree trunks and even hang upside Upside The potential dollar amount by which the market or a stock could rise. Notes: This is basically an educated guess on how high a stock could go in the near future. See also: Bull, Downside down. Jon Barnes, a scientist at the University of Glasgow The University of Glasgow (Scottish Gaelic: Oilthigh Ghlaschu, Latin: Universitas Glasguensis) was founded in 1451, in Glasgow, Scotland. in Scotland, recently discovered what gives these frogs their ability to cling at such extreme angles. Tree frogs rely on a thin coating of sticky mucus mucus /mu·cus/ (mu´kus) the free slime of the mucous membranes, composed of secretion of the glands, various salts, desquamated cells, and leukocytes. mu·cus n. on their toe pads to help them adhere. But on the steepest inclines, the frogs' toes can begin to peel away from the surface. Barnes found that to avoid coming unstuck, the frogs spread their legs wide apart. This keeps their feet planted firmly against the surface. The more contact there is between the frogs' toes and the object underneath, the more friction exists between the two surfaces. This force of resistance helps the frogs stay put. |
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