(n.) Any one of several species of small insectivores of the family Centetidae, belonging to Ericulus, Echinope, and related genera, native of Madagascar. They are more or less spinose and resemble the hedgehog in habits. The rice tendrac (Oryzorictes hora) is very injurious to rice crops. Some of the species are called also tenrec.
Example Sentences:
Tenrec
Definition:
(n.) A small insectivore (Centetes ecaudatus), native of Madagascar, but introduced also into the islands of Bourbon and Mauritius; -- called also tanrec. The name is applied to other allied genera. See Tendrac.
Example Sentences:
(1) The relative brain size (encephalization) seems to be lower in Geogale than in the Tenrecinae (spiny or bristled tenrecs) which so far have been found to be at the bottom of the encephalization scale of extant mammalian species.
(2) Regular chewing was studied in the specialized Malagasy insectivore Tenrec ecaudatus with the aid of precisely correlated electromyography of the main adductors, digastrics, and two hyoid muscles and cineradiography for which metallic markers were placed in the mandibles, tongue, and hyoid bone.
(3) A comparison of the whole chains and certain positions of tenrec hemoglobin with those of Insectivora sensu strictu, Scandentia and Proto- and Metatheria corroborates a long and independent evolution of tenrec and its phylogenetic isolation from the Insectivora s.str.
(4) Using retrograde axonal flow and wheatgerm agglutinin conjugated to horseradish peroxidase, we studied the distribution of cortical neurons giving rise to spinal and dorsal column nuclear projections, and correlated the regions involved in the projections with the cytoarchitectonic areas recently identified in the lesser hedgehog tenrec, Echinops telfairi (Insectivora).
(5) The primary structures of the alpha- and beta-hemoglobin chains of the lesser hedgehog tenrec (Echinops telfairi, Zalambdodonta) are presented.
(6) This study uses a comparative approach to evaluate the role of footpad sweating on increasing friction, utilizing a variety of mammals which possess sweat glands on their footpads (rat, tenrec, hyrax, and dog).
(7) Reproduction in female tenrecs was studied on Praslin Island (4 degrees 20'S, 55 degrees 45'E) in the Seychelles from November 1977 to September 1980.
(8) The distribution of neurons projecting to the spinal cord and dorsal column nuclear complex was investigated in the mesodiencephalic regions of the lesser hedgehog-tenrec, Echinops telfairi (Insectivora) by using the retrograde flow technique.
(9) Using the autoradiographic tracing technique the retinal projections were studied in the tenrecs, Echinops telfairi and Setifer setosus (insectivora, tenrecidae).
(10) These include: (1) polyovulation in some bats, tenrecs, the plains viscacha, and the pronghorn antelope; (2) cases of recurrent, consecutive, spontaneous abortions in humans; (3) some cases of surplus flower production and fruit abortion; (4) sex-ratio adjustment in red deer, mice, and coypus; (5) some types of cannibalism, including possible cases in mice, sharks, and wasps.
(11) The distribution of the neuropeptide Y (NPY) was studied in geniculate and peri-chiasmatic regions in the lesser hedgehog-tenrec, Echinops telfairi (Insectivora).
(12) Macromorphology, composition, and encephalization of the brain of Geogale aurita, a small Madagascan tenrec, were studied.
(13) The claustra of 9 species of Insectivora (Sorex araneus, Sorex minutus, Tenrec ecaudatus, Solenodon paradoxus, Neomys fodiens, Erinaceus europaeus, Talpa europaea, Desmana moschata, Potamogale velox) were investigated.
(14) Golden moles are an ancient lineage of mammals (related to tenrecs) with many unique features; it has been suggested that the Chrysochloridae constitute a separate order, the Chrysochloridea.
(15) The most striking finding may concern the projection to the medial terminal nucleus being quite prominent in marsupials and most eutherian mammals (including the erinaceomorphous hedgehogs), but greatly reduced in tenrecs and primates.
(16) The possible adaptive significance of these properties is discussed in relation to the large diurnal body temperature variations seen in tenrecs.
(17) Compared to human hemoglobin the tenrec pigment shows a low intrinsic oxygen affinity as well as lower chloride and temperature sensitivities, a reduced Bohr effect and a strong response to 2,3-DPG.