Results 81 to 90 of about 22,263 (197)

Insights into the evolution of mammalian telomerase: Platypus TERT shares similarities with genes of birds and other reptiles and localizes on sex chromosomes

BMC Genomics, 2012
Background The TERT gene encodes the catalytic subunit of the telomerase complex and is responsible for maintaining telomere length. Vertebrate telomerase has been studied in eutherian mammals, fish, and the chicken, but less attention has been paid to ...
Hrdličková Radmila, Nehyba Jiří, Lim Shu Ly, Grützner Frank, Bose Henry R   +4 more
doaj   +1 more source

Contemporary Reflections on Substantial Kind Change in Avicenna

Theoria, EarlyView.
ABSTRACT Contemporary metaphysics, and especially neo‐Aristotelian metaphysics, tackles many of the same problems as Avicenna did. One of these problems is the possibility of substantial kind change. For instance, is it possible for an animal to change its species?
Tuomas E. Tahko
wiley   +1 more source

Optics-less smart sensors and a possible mechanism of cutaneous vision in nature

, 2008
Optics-less cutaneous (skin) vision is not rare among living organisms, though its mechanisms and capabilities have not been thoroughly investigated.
A. B. Sichert, A. H. G. R. Kan, D.-E. Nilsson, D.-E. Nilsson, E. Sampaio, G. Békésy Von, G. J. Molenaar, H. L. Van-Trees, H. P. Zavala, I. R. Schwab, J. Pettigrew, L. Yaroslavsky, L. Yaroslavsky, M. Gardner, M. M. Bongard, P. Bach-y-Rita, R. Parker, W. J. Gehring   +17 more
core   +1 more source

Egg development, hatching rhythm and moult patterns in Paralomos spinosissima (Decapoda: Anomura: Paguroidea: Lithodidae) from South Georgia waters (Southern Ocean) [PDF]

, 2007
Larval release, hatching rhythms and moult patterns were examined in a captive population of the subantarctic lithodid, Paralomis spinosissima from the South Georgia and Shag Rocks region.
AM Wenner, G Watters, GA Lovrich, GA Lovrich, Hoggarth, J Watts, JA Baeza, JA Calcagno, Jamie Watts, K Anger, K Anger, Lovrich, M Frederich, MA Collins, Mark Belchier, MG Purves, S Thatje, S Thatje, S Thatje, SA Morley, Sarah Clarke, Sloan, Somerton, Stevens, Sven Thatje, Thatje, William D. K. Reid   +26 more
core   +1 more source

Platypus predation has differential effects on aquatic invertebrates in contrasting stream and lake ecosystems

Scientific Reports, 2020
Predators can have strong impacts on prey populations, with cascading effects on lower trophic levels. Although such effects are well known in aquatic ecosystems, few studies have explored the influence of predatory aquatic mammals, or whether the same ...
T. McLachlan-Troup, S. Nicol, C. Dickman
semanticscholar   +1 more source

Persistent Decline of the Piscivorous Cyprinid, Opsariichthys uncirostris, in Lake Biwa Despite Recovery Trends Among Other Native Species

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
Three‐lips is the sole piscivorous cyprinid in Japan, which pursues lures aggressively. This study surveyed the persistent decline of the species over thirteen years. This is a mature male individual caught in 2016. ABSTRACT Freshwater ecosystems are increasingly recognised as highly susceptible to anthropogenic disturbances.
Akio Imamura, Atsushi Maruyama
wiley   +1 more source

Morphology and Genetic Response of Two Stream Fishes (Opsariichthys bidens and Zacco platypus) to Environmental Changes in the Beijiang River

Guangdong nongye kexue
【Objective】Global climate change significantly affects all groups of organisms, among which freshwater aquatic organisms are considered to be one of the more serious groups.
Yan ZHUANG, Xirui LI, Guoling CHAI, Zhenghui JIN, Zhaoyang YANG, Shiting HUANG, Chao LI   +6 more
doaj   +1 more source

Navigating the information landscape [PDF]

, 2011
Preprint of column segment to be published in Serials Librarian 61(3), 2011.This article explores the tension between the structures by which the library organises and presents information, and the ways in which students and researchers access, use and ...
Coonan, Emma
core   +1 more source

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

The Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae, Julien Benoit, Irina Ruf, Zoleka Sibiya, Bhart‐Anjan S. Bhullar   +4 more
wiley   +1 more source

Bioorganic studies on the venom from duckbill platypus [PDF]

, 2012
Conference：27th International Symposium on the Chemistry of Natural Products and the 7th International Conference on Biodiversity (ISCNP-27 & ICOB-7) Brisbane Australia 10–15 July 2011journal ...
KITA Masaki
core   +1 more source