What's the difference between beaver and rat?

Beaver


Definition:

  • (n.) An amphibious rodent, of the genus Castor.
  • (n.) The fur of the beaver.
  • (n.) A hat, formerly made of the fur of the beaver, but now usually of silk.
  • (n.) Beaver cloth, a heavy felted woolen cloth, used chiefly for making overcoats.
  • (n.) That piece of armor which protected the lower part of the face, whether forming a part of the helmet or fixed to the breastplate. It was so constructed (with joints or otherwise) that the wearer could raise or lower it to eat and drink.

Example Sentences:

  • (1) Discussions were analyzed using the Hill Interaction Matrix and modified Beavers-Timberlawn Family Evaluation Scales.
  • (2) The report said beavers could improve fish stocks and their dams could help prevent flooding by slowing down the flow of water from high ground.
  • (3) But farmers and landowners have expressed concern about the impact of the species on rural businesses after reports of "significant impacts on agricultural land" in areas of Tayside where a colony of around 150 beavers has become established .
  • (4) The beavers have felled most of the bankside birch, sycamore and other trees they like to eat and use for their dams.
  • (5) On Wednesday it was reported that a beaver on the river had given birth to three young.
  • (6) Studies have been made on the peroxidase activity of metmyoglobins in animals from various ecological groups--the horse Equus caballus, cattle Bos taurus, beaver Castor fiber, otter Lutra lutra, mink Mustela vison and dog Canis familiaris.
  • (7) Scotland’s powerful salmon fishery and farming lobbies have repeatedly resisted or criticised beaver reintroductions, including blocking a plan for a second official release scheme at Insh Marshes national nature reserve near Kingussie in the Cairngorms – only 35 miles north of Loch Rannoch.
  • (8) The relationships of retinal drusen, retinal pigmentary abnormalities, and macular degeneration to age and sex were studied in 4926 people between the ages of 43 and 86 years who participated in the Beaver Dam Eye Study.
  • (9) At least two centuries after the species was hunted to extinction in the UK, three beaver families have been released into three lochs in forest unpopulated by people near the Sound of Jura in Argyll.
  • (10) FoE claimed all this was “a significant shift from the government’s previous position which stated that the beavers could not be allowed to remain and should be removed.” Alasdair Cameron, an FoE campaigner, said: “We’re delighted that the government appears to be listening to local people who want these beavers to swim freely in their rivers.
  • (11) In England, beavers are back on the river Otter , and otters on the river Trent.
  • (12) We had two objectives in this study: 1) to determine if patients who might benefit from exercise training could be selected based on resting respiratory function measurements; 2) to determine if the work rate at which the metabolic acidosis starts to develop could be reliably determined, non-invasively, by a simple modification of the recently described V-slope method of Beaver et al.
  • (13) A new pair of beavers has been released into a river in Devon to boost the genetic diversity of England’s only wild population of the mammals.
  • (14) On the thigh of an Europa Beaver, Castor fiber L., dead after 8 years of captivity, a candidiasis has been found due to Candida albicans.
  • (15) The prevalence of Giardia infection in juvenile and adult live-trapped muskrats was similar (92.5 and 94.4%, respectively), but the prevalence in juvenile live-trapped beavers (23.2%) was significantly greater than that seen in the adult animals (12.6%).
  • (16) It was in a bar at the LSE called [cue dramatic pause]… the Beaver's Retreat."
  • (17) MisterRed 07 May 2014 6:46pm Leeds: LSD and a couple of E's 77E112E1240H 07 May 2014 8:34pm Rotterdam - Bring Your Own Beaver.
  • (18) Dairy farmer Dave Lawrence took the Guardian to the spot where the beavers are usually seen, close to an island in the river thick with nettles, willow and thistles.
  • (19) Facebook Twitter Pinterest Come spring otters will hunt the vulnerable baby beaver kits.
  • (20) Historically it was one of the first areas of western Canada visited by European explorers, travelling over the Methye Portage to reach the Clearwater and Athabasca rivers, rich sources of the furs that were shipped back to England to feed the demand for beaver hats – the first resource exploitation.

Rat


Definition:

  • (n.) One of several species of small rodents of the genus Mus and allied genera, larger than mice, that infest houses, stores, and ships, especially the Norway, or brown, rat (M. decumanus), the black rat (M. rattus), and the roof rat (M. Alexandrinus). These were introduced into America from the Old World.
  • (n.) A round and tapering mass of hair, or similar material, used by women to support the puffs and rolls of their natural hair.
  • (n.) One who deserts his party or associates; hence, in the trades, one who works for lower wages than those prescribed by a trades union.
  • (v. i.) In English politics, to desert one's party from interested motives; to forsake one's associates for one's own advantage; in the trades, to work for less wages, or on other conditions, than those established by a trades union.
  • (v. i.) To catch or kill rats.

Example Sentences:

  • (1) All rats were examined in the conscious, unrestrained state 12 wk after induction of diabetes or acidified saline (pH 4.5) injection.
  • (2) It was tested for recovery and separation from other selenium moieties present in urine using both in vivo-labeled rat urine and human urine spiked with unlabeled TMSe.
  • (3) It is supposed that delta-sleep peptide along with other oligopeptides is one of the factors determining individual animal resistance to emotional stress, which is supported by significant delta-sleep peptide increase in hypothalamus in stable rats.
  • (4) The microsomal preparations from untreated Syrian golden hamster livers exhibited higher activities of N-demethylation towards the macrolide antibiotics, erythromycin and troleandomycin, than those from untreated and phenobarbital-treated rats.
  • (5) Phospholipid methylation in human EGMs is distinctly different from that in rat EGMs (Hirata and Axelrod 1980) in that the human activity is not Mg++-dependent, and apparent methyltransferase I activity is located in the external membrane surface.
  • (6) Biochemical, immunocytochemical and histochemical methods were used to study the effect of chronic acetazolamide treatment on carbonic anhydrase (CA) isoenzymes in the rat kidney.
  • (7) In conclusion, in S-rats a glucose-stimulated insulin release is accompanied by an increase in IBF, but this is not observed in P-rats.
  • (8) Competition with the labelled 10B12 MAb for binding to the purified antigen was demonstrated in sera of tumor-bearing and immune rats.
  • (9) Nutritionally rehabilitated animals had similar numbers of nucleoli to control rats.
  • (10) This study examined the [3H]5-HT-releasing properties of 3,4-methylenedioxymethamphetamine (MDMA) and related agents, all of which cause significant release of [3H]5-HT from rat brain synaptosomes.
  • (11) Addition of phospholipase A2 from Vipera russelli venom led to a significant increase in the activity of guanylate cyclase in various rat organs.
  • (12) Spontaneous locomotor activity was lower in naloxone-infused rats on day 3 only.
  • (13) The LD50 of the following metal-binding chelating drugs, EDTA, diethylenetriaminepentaacetic acid (DTPA), hydroxyethylenediaminetriacetic acid (HEDTA), cyclohexanediaminotetraacetic acid (CDTA) and triethylenetetraminehexaacetic acid (TTHA) was evaluated in terms of mortality in rats after intraperitoneal administration and was found to be in the order: CDTA greater than EDTA greater than DTPA greater than TTHA greater than HEDTA.
  • (14) We have investigated a physiological role of endogenous insulin on exocrine pancreatic secretion stimulated by a liquid meal as well as exogenous secretin and cholecystokinin octapeptide (CCK-8) in conscious rats.
  • (15) The subcellular distribution of sialyltransferase and its product of action, sialic acid, was investigated in the undifferentiated cells of the rat intestinal crypts and compared with the pattern observed in the differentiated cells present in the surface epithelium.
  • (16) However, the groups often paused less and responded faster than individual rats working under identical conditions.
  • (17) After 55 days of unrestricted food availability the body weight of the neonatally deprived rats was approximately 15% lower than that of the controls.
  • (18) To examine the central nervous system regulation of duodenal bicarbonate secretion, an animal model was developed that allowed cerebroventricular and intravenous injections as well as collection of duodenal perfusates in awake, freely moving rats.
  • (19) In the present investigation we monitored the incorporation of [14C] from [U-14C]glucose into various rat brain glycolytic intermediates of conscious and pentobarbital-anesthetized animals.
  • (20) Gel filtration of the 40,000 rpm supernatant fraction of a homogenate of rat cerebral cortex on a Sepharose 6B column yielded two fractions: fraction II with the "Ca(2+) plus Mg(2+)-dependent" phosphodiesterase activity and fraction III containing its modulator.

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