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Tech & Science First in-vitro birth of toad near extinction gives scientist hope

13:35  24 november  2019
13:35  24 november  2019 Source:   nydailynews.com

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Toad -ally cool! Scientists with the Fort Worth Zoo in Texas are celebrating some very encouraging news about the future of a critically endangered species. Scientists fear that rising sea levels could threaten their habitat. As they live near the beach, saltwater could invade the ponds that are used for

First in - vitro birth of toad near extinction gives scientist hope . Raveena regrets having no social media in the 90's. Bal Gill, 41, said the thermal camera, a tourist attraction at the Camera Obscura and World of Illusions, in Edinburgh, detected the red heat radiating from her breast.

  First in-vitro birth of toad near extinction gives scientist hope © Provided by McClatchy-Tribune Information Services

Toad-ally cool!

Scientists with the Fort Worth Zoo in Texas are celebrating some very encouraging news about the future of a critically endangered species.

The first Puerto Rican crested toad was born via in-vitro fertilization, officials announced Friday.

Named after the frozen semen it came from, Olaf is the first of over 300 toads that hatched after a first failed attempt, the zoo’s ectotherms curator Diane Barber told The Associated Press.

“We don’t typically name our toads, but that one deserved special recognition,” she said. “We were super, super excited. ... You kind of hold your breath for 30 days to see if they’re going to metamorphose.”

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Russian scientists found the canine buried in permafrost deposits near Yakutsk, in the far-east of Russian Siberia, an area known for The pup's discovery posed some ambiguities for the Swedish and Russian researchers tasked with analysing the carcass. First in - vitro birth of toad near extinction

Toad -ally cool! Scientists with the Fort Worth Zoo in Texas are celebrating some very encouraging news about the future of a critically endangered species. The first Puerto Rican crested toad was born via in - vitro fertilization, officials announced Friday.Named after the frozen semen it came from

Believed to be extinct in the past, the Puerto Rican crested toad was rediscovered in the early 1980s. Most of the population, estimated to be anywhere between 300 and 3,000, lives in southern Puerto Rico.

Scientists fear that rising sea levels could threaten their habitat. As they live near the beach, saltwater could invade the ponds that are used for breeding, which can prove to be devastating for the species.

Last year, Barber accompanied a team of scientists — which included scientists with the U.S. Fish and Wildlife Service and Puerto Rico’s Department of Natural Resources — to the southwest town of Guayanilla, where they collected semen from six male toads.

Normally, it’s not difficult to extract semen from toads measuring up to 4.5 inches, according to Barber, since they release it in their urine and they pee whenever they are picked up.

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Toad -ally cool! Scientists with the Fort Worth Zoo in Texas are celebrating some very encouraging news about the future of a critically endangered species. The first Puerto Rican crested toad was born via in - vitro fertilization, officials announced Friday.Named after the frozen semen it came from

Toad -ally cool! Scientists with the Fort Worth Zoo in Texas are celebrating some very encouraging news about the future of a critically endangered species. The first Puerto Rican crested toad was born via in - vitro fertilization, officials announced Friday.Named after the frozen semen it came from

The Puerto Rican crested toads, however, don’t pee. So the team had to get creative.

“It’s kind of weird, but if you hold them in your hand and look at them and bark at them like a dog, they will pee,” she said.

After the semen was collected, the male toads were released back into the wild. The semen was then transported in liquid nitrogen to the Fort Worth Zoo, where scientists injected two female toads with it.

Armando Otero, interim secretary of Puerto Rico’s Department of Natural Resources, celebrated Olaf’s birth, adding that this was the first time that in-vitro fertilization was used in the decades-long effort to save the species

“This is a significant advance for critically endangered species, as it will allow zoos, researchers and other conservationists to expand their genetic population used to increase the general population while keeping toads in their natural and wild habitat,” he said in a statement.

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