BiologyLife in all varieties. What is it, and how does it evolve?
Advertisement (please log in or register to remove this ad)
Notices
Welcome to the Hypography Science Forums. You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, take quizzes, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today! If you have any problems with the registration process or your account login, please contact contact us.
My most unusual frog encounter involves actually the tadpole of a rare frog. Being the only frog tadpole species to have a "sucker-like" mouth, I mistook them for leaches when I encountered them on the Green Fork River in the Gifford Pinchot national Forest in Washington State USA in the year of 1,992 years before the common era. I have since learned they develop into the rare Tailed Frog which inhabits a narrow band of territory extending along the Pacific NW regions of British Columbia & the United States.
I visited the area recently on a scientific Sasquath expedition, however I saw no tadpoles in the Green Fork; likely too early in the season as my previous sighting occured in July.
Amazing thank you.
Many frogs in Australia are having problems surviving.
Some say it is increased UV from ozone depletion; others say a virus is responsible; but certainly the introduction of the Queensland Cane Toad from South America was/is a major environmental disaster.
They out-compete the native frogs everywhere. They are the only toad in Australia and were introduced to control a sugar-cane bug which they didn't do.
Enterprising tourist operators stuff them in poses playing golf etc
Some smoke them for the supposed high from their poison glands.
Native animals,snakes and dogs that eat them die from the poison gland.
It is feared that this year they might reach the pristine World Heritage Park 'Kakadu' in NT
There used to be tadpoles in any bit of water when I was a kid in the 50s and 60s now it is rare to see any.
The Emberá Chocó, an indigenous people of western Colombia, rely on three local and highly toxic frog species to poison their blow darts. Hunters rub handmade darts along the backs of the frogs; scientists report that a single Phyllobates terribilis frog can supply enough toxin to taint 30 to 50 darts, which stay potent for roughly a year. The Emberá typically use their blowguns for hunting, but in the past may have also used them in warfare
__________________ “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of the players, (ie everybody), to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
Gaiman & Prattchet.
i had been looking for tailed frogs in bc for a good 8 years and have yet to see one...talk about pathetic. certainly do not seem common! i believe tehre is another tailed frog in new zealand or oz, cant remember. cool creatures.
i had been looking for tailed frogs in bc for a good 8 years and have yet to see one...talk about pathetic. certainly do not seem common! i believe tehre is another tailed frog in new zealand or oz, cant remember. cool creatures.
I vaguely remember seeing that they give birth to fully grown live young not tadpoles (pollowogs)
??Don't know of an Aust. Variety
This was in the news today:
Quote:
Frogs may buy time for organ transplants
Monday Aug 7 18:21 AEST
A tiny frog that freezes itself during winter and thaws back to life months later could provide the vital key to keeping human organs alive for life-saving transplants.
Canadian researcher Ken Storey first investigated the amazing ability of the Canadian wood frog in the 1980s and has now turned his attention to enthusing other scientists about the medical possibilities the amphibian can offer.
"What these little creatures do is just incredible, literally living with ice in their veins," Prof Storey told AAP.
"If we could just find out how they do it and replicate it, then that's a lot of lives saved."
Prof Storey discovered the frog could survive sub-zero temperatures using complex molecular interaction.
This involves different genes and proteins which releases glucose into the animals cells, forming a slushy sugar solution that prevents the cells from shrinking beyond repair.
Other mechanisms trigger and guide ice growth throughout the blood and body cavities so that about 65 per cent of the frog's total body water is turned to ice.
In this state the heart and kidneys stop, the brain waves are halted and the animal is suspended in biological time all winter.
__________________ “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of the players, (ie everybody), to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
Gaiman & Prattchet.
Last edited by Michaelangelica; 08-07-2006 at 07:12 AM.
wood frogs are pretty cool, thankfully more common as well.
the New Zealand frogs are in the genus Leiopelma. i was thinking that there were a couple Ascaphus. anyway i found some saved webpages on the computer and it turns out they were split into 2 species. Ascaphus truei and Ascaphus montanus.
thought it may be worth mentioning. Chytridiomycosis. A nasty little fungus killing a good number of amphibians. it is apparently being spread by bullfrogs in canada, and they are said to be unaffected...i am really curious why bullfrogs are not affected by it? there are some other large ranids in canada, like the red legged frog, which are being affected.
I vaguely remember seeing that they give birth to fully grown live young not tadpoles (pollowogs)
??
If you refer to the tailed frogs here as "they", then no, what you think you heard is false. The tadpole looks very much like most tadpoles, having no limbs, no lungs, and a tail. What differs is the mouth, which as I say is a "sucker-mouth" which they use to cling to rocks in slow moving undisturbed streams such as The Green Fork River in Washington State's Gifford Pinchot National Forest where I saw & caught them.
__________________ dare to be naive. ~ r. buckminster fuller
How can Frogs be Asexual, are all Amphibians asexual seen as they have similar lifestyles?
What other known species are asexual?
This is news to me.
I thought frogs were male and; or; female.
__________________ “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of the players, (ie everybody), to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
Gaiman & Prattchet.
# If I hadn't seen this myownself, I'm not certain I would believe it.
Nonetheless, I'm here to tell you I witnessed a young bullfrog trying to snatch a bird right out of thin air. Happened a few days ago at my wife's fishpond just outside a window in my home office.
I was listening to someone on the phone and idly watching a hummingbird as it sipped nectar from flowers around the pond. Suddenly - doooiiiinng! - a small frog leapt from the vegetation like Michael Jordan.
The arc of its jump carried it directly toward the bird. Fortunately for the hummer, it backpedaled immediately, then shot out of the territory. The frog landed with a splash.
"Was that frog actually trying to eat a hummingbird?" I later asked Marcia Davis, the News Sentinel's bird columnist.
"Absolutely," she replied. "Although I've never seen it, I've heard reports of frogs catching hummingbirds."
Amazing on two counts: (1) that a frog would attempt to take on such gargantuan vittles; (2) that I'm now one up on our resident ornithologist.
__________________ “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of the players, (ie everybody), to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
Gaiman & Prattchet.
This is news to me.
I thought frogs were male and; or; female.
The second post by LearningToLearn, he states that it's amazing that frogs can become asexual when they want to, so I don't know if it's true or not now. Funny if it was true.
Astronomical instruments needed to answer crucial questions, such as the search for Earth-like planets or the way the Universe expands, have come a step closer with the first demonstration at the telescope of a new calibration system for precise spectrographs. The method uses a Nobel Prize-winning technology called a 'laser frequency comb', and is published in this week's issue of Science. Read » | 0 comments
Stanford computer scientists have developed an artificial intelligence system that enables robotic helicopters to teach themselves to fly difficult stunts by watching other helicopters perform the same maneuvers. The result is an autonomous helicopter than can perform a complete airshow of complex tricks on its own. Read » | 0 comments
Re: Frogs are amazing 
Re: Frogs are amazing 
dare to be naive. ~ r. buckminster fuller 
