Results 41 to 50 of about 1,917 (204)
Extreme plasticity in reproductive biology of an oviparous lizard [PDF]
Ecology and Evolution, 2018 AbstractMost oviparous squamate reptiles lay their eggs when embryos have completed less than one‐third of development, with the remaining two‐thirds spent in an external nest. Even when females facultatively retain eggs in dry or cold conditions, such retention generally causes only a minor (<10%) decrease in subsequent incubation periods.
Mats Olsson +5 more
openaire +3 more sources
Terrestrial gastropods - how do they reproduce? [PDF]
Invertebrate Survival Journal, 2017 Molluscs are the most diverse group in respect of sexual systems and strategies. They can be dioecious with separate sexes or hermaphroditic. Within hermaphroditism, it is possible to distinguish a number of modifications of this type of reproduction ...
K S Zajac, P E Kramarz
doaj +1 more source
Revista Mexicana de Biodiversidad, 2012 Egg retention (ER) and intrauterine embryonic development (IED) have been considered intermediate steps in the evolution from oviparity to viviparity. Sceloporus aeneus is an oviparous lizard that is closely related to the viviparous species (Sceloporus ...
Rodolfo García-Collazo +4 more
doaj +1 more source
THE NON-OVIPAROUS FEMALE HOOKWORM [PDF]
JAMA: The Journal of the American Medical Association, 1910 In every higher animal we recognize certain more or less definite periods of physiologic activity, and we roughly divide the span of life into three stages, which are in no way sharply outlined. These we call the stages of youth, adolescence, and old age.
openaire +1 more source
The chloride channel cystic fibrosis transmembrane conductance regulator (CFTR) controls cellular quiescence by hyperpolarizing the cell membrane during diapause in the crustacean Artemia [PDF]
, 2019 Cellular quiescence, a reversible state in which growth, proliferation, and other cellular activities are arrested, is important for self-renewal, differentiation, development, regeneration, and stress resistance.
Bossier, Peter +10 more
core +1 more source
Embryonic Growth and Yolk Depletion during Incubation in the Chinese Skink, Plestiodon chinensis [PDF]
, 2019 We collected 24 gravid female Chinese skinks (Plestiodon chinensis) to study embryonic growth and yolk depletion during incubation. Females laid eggs between late May and mid-June. Eggs were incubated at 24 (± 0.3) °C.
Kun GUO, Li MA, Shan SU, Xiang JI
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Integrative Zoology, EarlyView.We integrated short‐read and long‐read RNA‐seq data from cochlear tissues of echolocating and non‐echolocating bats to disentangle transcriptional and post‐transcriptional regulation. Echolocating bats showed neural‐function enrichment among differentially expressed genes, while alternatively spliced genes were linked to epigenetic regulation. Overlaps
Jianyu Wu +3 more
wiley +1 more source
Insect Molecular Biology, Volume 35, Issue 3, Page 217-231, June 2026.Duplication of vas genes is universally observed in aphids, and phylogenetic analysis indicates that this event predates the divergence of Aphididae and Phylloxeridae. Ap‐vas1 is germline‐specific, whereas Ap‐vas2–4 exhibit somatic expression, indicating functional divergence during aphid embryogenesis.
Gee‐Way Lin +4 more
wiley +1 more source
Risk Factors for Tick‐Borne Diseases in Germany: A Scoping Review
Zoonoses and Public Health, Volume 73, Issue 4, Page 297-313, June 2026.ABSTRACT Tick‐borne diseases (TBDs) have proliferated in Germany. The two most prevalent TBDs, Lyme‐borreliosis and tick‐borne encephalitis, can present with nonspecific symptoms and lead to serious neurological complications. To date, a review synthesising the risk factors of acquiring a TBD in Germany is missing.
Carolin Schlupp, Matthias Hans Belau
wiley +1 more source
Effect of different feeds and water salinities on the cyst production of brine shrimp, Artemia sp. [PDF]
, 2002 Effect of different feeds and salinities on cyst production in Artemia sp. was studied. Among the 12 different feeds used, ragi powder suspension showed the best growth and cyst production.
Joshi, V.P., Vartak, V.R.
core