Navigation Links
African amphibians make extreme parental sacrifice: The skin off their backs

heir mothers.

"We observed eight episodes of skin feeding by different young from five different broods," Nussbaum said. "In each episode, the young moved over and around their mothers' bodies, vigorously pressing their heads against their mothers while repeatedly opening and closing their mouths. They used their lower jaws to lift and peel the outer layer of the mother's skin."

Studies of the females' skin revealed that the outer layer is up to twice as thick in brooding females as in non-brooding females and is full of nutritious fat.

Amphibians are a diverse lot when it comes to parental care, which may include hiding, guarding, carrying and feeding offspring. Among caecilians---the order of amphibians to which B. taitanus and S. annulatus belong---some lay yolky eggs and tend them until they hatch but invest no energy in feeding the young after hatching; others bear live young that fend for themselves after birth.

In those that bear live young, fetuses are equipped with specialized teeth---something like those of B. taitanus and S. annulatus---that are thought to be used for scraping secretions and cellular material from the lining of the mother's oviduct. The skin-feeding behavior seen in B. taitanus may represent an evolutionary intermediate between these two reproductive modes, Nussbaum said.

The discovery of this never-before-seen behavior also highlights the importance of conservation efforts, Nussbaum said. "Concerns have been growing about amphibian populations that appear to be declining worldwide. Our discovery underscores the need for further studies to better document the amazing diversity of amphibian life history strategies and greater efforts to conserve it."

Nussbaum collaborated on the research with Alexander Kupfer and Mark Wilkinson of the Natural History Museum in London, UK; Hendrik Muller of Leiden University in the Netherlands; Marta Antoniazzi and Carlos Jared of Laboratorio de Biologia Celu
'"/>

Source:University of Michigan


Page: 1 2 3

Related biology news :

1. New push for public health, AIDS spending at African Union summit
2. South African Tribunal Asks For Damages Estimates in GSK AIDS Drug Case
3. Six million Africans face famine because of locusts, drought
4. Fungus-farming termites descend from an African rain forest Eve
5. Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees
6. Compound might defeat African sleeping sickness, clinical trial beginning this month
7. Crisis in African fish supplies looms, experts warn Africa leaders
8. New partnership to clear landmines for African Elephants
9. US/African project deciphers deadly parasite genome
10. Tropical Atlantic cooling and African deforestation correlate to drought, report scientists
11. Newly identified mechanism helps explain why people of African descent are more vulnerable to TB
Post Your Comments:
(Date:8/6/2015)... CITY, Calif. , Aug. 6, 2015 /PRNewswire/ ... Valley) will visit Crossmatch ™ to learn ... networks and protect data. Crossmatch is a world ... whose technologies and expertise are helping federal agencies ... efficiency and security.   "The vast ...
(Date:8/5/2015)... 2015 Transparency Market Research has ... - Global Industry Analysis, Size, Share, Growth, Trends and ... recognition is forecast to reach US$ 2,671.8 Mn by ... surveillance systems by civil and government agencies. This is ... terrorist activities across the globe that would elevate the ...
(Date:8/3/2015)... JOSE, Calif. , Aug. 3, 2015 ... of human interface solutions, today announced that members of ... community at the Pacific Crest Global Technology Leadership Forum ... Time. The conference will be held at the Sonnenalp ... The presentation may include forward-looking information. An ...
Breaking Biology News(10 mins):Rep. Honda to Visit Crossmatch in Redwood City 2Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 2Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 3Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 4Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 5Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 6
... University of Liverpool has found that greater consideration ... infectious disease model would improve its effectiveness/usefulness and ... central role in planning for outbreaks of human ... progress and guiding and informing policy responses. ...
...   Arcturus Therapeutics, Inc. , an industry leader in RNAi technologies ... secured $5 million in a Series A funding round led by ... , Japan and the United ... The Series A funding, which comprised more than 90% of ...
... a biological quirk that promises to provide researchers with ... X syndrome, scientists at the University of Massachusetts Medical ... important for messenger RNA (mRNA) translation in neurons restores ... model of a prevalent human neurological disease. These results, ...
Cached Biology News:Study explores the role of uncertainty in infectious disease modelling 2Arcturus Therapeutics Raises $5 Million in Series A Funding to Maintain its Momentum in Nominating Lead Clinical Candidate in 2014 2Arcturus Therapeutics Raises $5 Million in Series A Funding to Maintain its Momentum in Nominating Lead Clinical Candidate in 2014 32 genetic wrongs make a biochemical right 22 genetic wrongs make a biochemical right 32 genetic wrongs make a biochemical right 4
(Date:8/28/2015)... -- According to a new market research ... Thawing Equipment, Alarms), by Biospecimen (Human Tissue, Stem Cells, ... - Global Forecast to 2020", published by MarketsandMarkets, the ... Million by 2020 from USD 2,150.48 Million in 2015, ... 2020. Browse 74 Tables and 95 ...
(Date:8/28/2015)... ... , ... Since the initial launch of FireflySci Inc. (FFS) in early 2015, the company continues ... Images such as the Fonz in a lab coat and Large Marge have been posted ... field. , FireflySci is proud to be the only cuvette manufacturer is the ...
(Date:8/27/2015)... Fla. , Aug. 27, 2015 The ... that a patient,s eyes—and life—were saved by doctors at ... , working with NNFF, NovaBay Pharmaceuticals and Dr. ... Care Center at Seton Medical Center in ... successful treatment used a breakthrough approach, pioneered by Dr. ...
(Date:8/27/2015)... ... August 27, 2015 , ... Inc. Magazine released its annual ... Solutions as number 1,361 in growth for the three years through 2014. Being named ... fastest-growing privately held organizations in the country. , “We are thrilled to make ...
Breaking Biology Technology:Biopreservation Market Worth 3,731.03 Million USD by 2020 2Biopreservation Market Worth 3,731.03 Million USD by 2020 3Biopreservation Market Worth 3,731.03 Million USD by 2020 4Biopreservation Market Worth 3,731.03 Million USD by 2020 5Cuvette Manufacturer FireflySci Launches Back to School Deals with Complimentary Shipping On All Orders 2Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 2Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 3iLab Solutions Named to 2015 Inc. 5000 List 2iLab Solutions Named to 2015 Inc. 5000 List 3
... Convergent Procedure, a novel approach to treat atrial ... nContact Surgical, Inc. (nContact), was highlighted at the ... Association for Cardio-Thoracic Surgery) Annual Meeting in Geneva, ... 2010 Techno-College Programme to receive an update on ...
... Nev., Sept. 10 PDL BioPharma, Inc. (PDL) (Nasdaq: ... will redeem all of the Company,s outstanding 2.75% Convertible Subordinated ... the 2023 Notes have been provided notice of the redemption ... 2023 Note holders who elect to convert their 2023 Notes ...
... ... if (typeof(lpUnit)==,undefined,) var lpUnit=,PRN,; ... var shortURL = ""; BitlyCB.alertResponse = function(data) { ... the first one. for (var r in data.results) { first_result = data.results[r]; break; } for (var key ...
Cached Biology Technology:The Convergent Procedure for the Treatment of Chronic Atrial Fibrillation Highlighted at EACTS Annual Meeting in Geneva 2PDL BioPharma Provides Clarification Regarding Redemption of Its 2.75% Convertible Subordinated Notes 2Nucletron Spotlights Innovations During ESTRO29 2Nucletron Spotlights Innovations During ESTRO29 3Nucletron Spotlights Innovations During ESTRO29 4Nucletron Spotlights Innovations During ESTRO29 5Nucletron Spotlights Innovations During ESTRO29 6Nucletron Spotlights Innovations During ESTRO29 7
... is ideal for the ... (1D electrophoresis, 2D electrophoresis, ... Pharmacokinetics & Toxicology (whole ... chromatography); Physical and Material ...
Fujifilm BAS-1800II provides the ideal configuration for a low-cost imager that requires only a small amount of space in the laboratory. The small imager for accurate high-throughput screening...
lid holder -see Blotters (Semi-Dry) for more info...
... QPlate is the consumable ... 16 contains 16 individually controlled ... contains a sophisticated liquid flow ... fast and precise solution and ...
Biology Products: