List of articles № 17
White Rat with Red Eyes: A Rare Variant
The rare phenotype of a white laboratory rat displaying vivid red irises results from a complete disruption of melanin production. Albinism originates from loss‑of‑function mutations in genes that encode enzymes or transport proteins essential for the synthesis, processing, or distribution of melanin within melanocytes.. Date latest changes:
Tumor Under a Rat's Paw: Diagnosis and Treatment
A tumor is an abnormal aggregation of cells that results from deregulated growth and division. The cellular mass can arise in any tissue and is distinguished by several key features: Persistent proliferation despite regulatory signals. Altered morphology and loss of normal tissue architecture.. Date latest changes:
When selecting designations for a pair of male rodents, observable character and physical form provide reliable guidance. Behavioral patterns distinguish each individual. A rat that exhibits bold exploration, frequent climbing, and confident interaction with handlers often suits names suggesting bravery or leadership.. Date latest changes:
Rat Diseases: Can They Transmit Rabies
Rabies is an acute, progressive encephalitis caused by the rabies virus, a member of the Rhabdoviridae family. The virus targets the central nervous system, leading to fatal outcomes once clinical signs appear. Transmission occurs primarily through the saliva of infected mammals, most often via bites.. Date latest changes:
How to Identify Rabies in a Rat
Rats present a markedly lower probability of carrying rabies compared with typical reservoir species such as raccoons, skunks, and foxes. Their limited susceptibility results from several biological and ecological factors. Natural resistance:. Date latest changes:
How to train rats to use a toilet
Training rats to use a toilet produces measurable advantages for owners. The practice reduces the need for traditional bedding cleanup, limits odor, and simplifies habitat maintenance. Eliminates daily spot‑cleaning of droppings, saving time.. Date latest changes:
Which Herbs Repel Mice and Rats in the Garden
Natural pest control aligns with garden health, reducing reliance on synthetic chemicals that can contaminate soil and water. Plant-based repellents break the cycle of chemical resistance, allowing rodents to remain vulnerable to natural deterrents without fostering adaptation.. Date latest changes:
Effective Homemade Methods for Catching Rats at Home
Droppings and urine stains provide the most reliable evidence of a rodent presence, allowing homeowners to pinpoint activity zones without guesswork. Fresh droppings appear as small, dark, rice‑shaped pellets, while older deposits darken and may acquire a crust.. Date latest changes:
Folk Remedies for Controlling Rats in a Chicken Coop
Rats in a poultry enclosure can transmit pathogens that jeopardize bird health. Direct contact or droppings introduce bacteria such as Salmonella and Campylobacter, leading to gastro‑intestinal illness and reduced egg production. Parasites carried by rodents, including mites and tapeworms, may infest chickens, causing anemia and weight loss.. Date latest changes:
Archaeological sites across the Near East reveal mouse remains associated with early human settlements dating to the 9th millennium BCE. These bones, found in grain storage pits, indicate that rodents entered villages as opportunistic foragers, exploiting stored cereals.. Date latest changes:
Spider That Eats Mice: Rare Cases of Predation
Spiders that capture vertebrate prey challenge conventional expectations of arachnid diet. Documented instances show adult specimens of large ground‑dwelling and funnel‑web species subduing small rodents, including juvenile mice, by immobilizing them with silk and delivering potent venom.. Date latest changes:
How to Attract Mice: Proven Methods
Mice rely on olfactory cues to locate sustenance and shelter. Strong, edible aromas draw individuals from considerable distances, while the presence of readily consumable items sustains their interest. Peanut butter: dense, aromatic, high‑fat profile.. Date latest changes:
Wormwood, scientifically known as Artemisia absinthium, belongs to the Asteraceae family. It is a perennial herb native to temperate regions of Europe, Asia, and North Africa. The plant develops erect stems up to 1.5 m tall, bearing silvery‑green, deeply lobed leaves and small yellowish‑green flower heads.. Date latest changes:
Mouse and rat sounds: what they reveal about rodent presence
Rodent vocalizations comprise a range of audible and ultrasonic signals produced by mice and rats for communication, territorial defense, and predator avoidance. These sounds differ in frequency, duration, and context, allowing researchers and pest‑control professionals to infer the presence and activity level of rodent populations.. Date latest changes:
How Cat Leopold Named His Mice
Leopold, the house cat, initiated his naming system with a single mouse that entered the pantry one winter evening. The animal, later called “Pip,” exhibited a distinctive brown coat and a pronounced whisker gap, traits that made identification effortless.. Date latest changes:
DIY Mouse Cage: Step‑by‑Step Guide
Customization of a home‑built mouse enclosure begins with material selection. Wood, acrylic, or recycled plastic each offer distinct durability, weight, and aesthetic qualities. Choosing a material that matches the animal’s activity level and the owner’s design preferences establishes the foundation for a personalized habitat.. Date latest changes:
Home Remedies for Mice on a Summer Cottage
Mice are drawn to a cottage primarily by accessible food. Identifying and eliminating these sources reduces the likelihood of infestation. Unsecured groceries: store canned goods, snacks, and dry items in airtight containers; avoid leaving packages open on countertops or tables.. Date latest changes:
What to Do If a Kitten Eats a Poisoned Mouse
After a kitten ingests a poisoned rodent, immediate visual monitoring determines the need for emergency care. Observe the animal continuously for the first several hours and note any changes. Vomiting or retching Diarrhea, especially with blood Excessive drooling or foaming at the mouth Lethargy, weakness, or collapse Tremors, seizures, or uncontrolled shaking Rapid or irregular breathing Dilated pupils or abnormal eye movements Unusual vocalizations or agitat. Date latest changes:
Which Insulators Repel Mice and Rats?
Rodents enter homes through gaps that provide shelter, food, and a route to the interior. The most frequent openings include: Gaps around exterior doors and windows, especially where weather‑stripping is missing or damaged. Cracks in foundation walls, basement floors, and crawl‑space walls.. Date latest changes:
Rodent Danger: Why Mice and Rats Threaten Humans
Rodent bites and scratches provide a direct conduit for pathogenic microorganisms to enter human tissue, bypassing the skin’s natural barrier. The puncture wound creates a moist, anaerobic environment that supports bacterial proliferation, while the trauma disrupts local immune defenses.. Date latest changes:
Rat Control: Effective Methods for Managing Populations
Understanding which rat species are present in an area is essential for any population‑management program. Species differ in size, habitat preference, reproductive rate, and susceptibility to control measures; accurate identification allows targeted actions and reduces non‑target impacts.. Date latest changes:
Water Rat: Features of Aquatic Lifestyle
The water rat, scientifically known as Nectomys spp., is a semi‑aquatic rodent native to tropical riverbanks and floodplain forests of South America. It belongs to the family Cricetidae and is closely related to other neotropical semiaquatic genera such as Neusticomys and Ichthyomys .. Date latest changes:
Rat Appearance: Main Characteristics
Rats exhibit a body length ranging from 15 cm to 30 cm, measured from the tip of the nose to the base of the tail. This dimension varies among species, with the common brown rat (Rattus norvegicus) typically reaching 20–25 cm, while the smaller black rat (Rattus rattus) averages 15–20 cm.. Date latest changes:
Rat as a Pet: Pros and Cons of Keeping One
Rats have accompanied humans for thousands of years, shifting from symbolic creatures to deliberate companions. Ancient Egypt (c. 3000 BCE): Rats appeared on tomb paintings and were occasionally kept for their perceived protective qualities.. Date latest changes:
Do Rats Shower: Myth or Reality
The footage presents a single laboratory‑bred rat placed on a shallow platform beneath a handheld spray bottle. The operator activates the bottle, delivering a fine mist that covers the animal’s dorsal surface for approximately three seconds.. Date latest changes:
The gestational period of laboratory rats typically spans 21 to 23 days from conception to parturition. Most strains average 22 days, with a standard deviation of approximately 0.5 day under controlled conditions. Strain differences :. Date latest changes:
How an Ultrasonic Rat Repellent Works
Ultrasonic rodent deterrents emit sound waves at frequencies above the upper limit of typical human auditory perception. The average adult can detect frequencies from roughly 20 Hz to 20 kHz; sensitivity declines sharply after 15 kHz, and most individuals cannot perceive tones beyond 18 kHz.. Date latest changes:
Large Rats in the Subway: How They Survive
Rats inhabiting metropolitan rail networks rely on a constant supply of edible material deposited by commuters, maintenance crews, and commercial vendors. The confined environment concentrates waste, creating a reliable nutrient reservoir that supports large colonies.. Date latest changes:
Black Rat: Characteristics and Behavior
The black rat, scientifically known as Rattus rattus , belongs to the order Rodentia and the family Muridae. It is a member of the genus Rattus , which comprises several species of commensal rodents found worldwide. Kingdom: Animalia Phylum:. Date latest changes:
Rats that are offered red peppers must be matched with varieties that differ in sweetness, texture, and capsaicin concentration. Understanding these distinctions helps determine which forms are suitable for rodent diets. Red bell pepper – large, fleshy fruit, virtually no capsaicin, high water content, rich in vitamins A and C.. Date latest changes:
Rats belong to the class Mammalia, a group distinguished by endothermy, the ability to maintain a stable internal temperature independent of ambient conditions. This physiological trait, commonly described as warm‑bloodedness, relies on metabolic heat production and regulatory mechanisms such as shivering, non‑shivering thermogenesis, and vasomotor control.. Date latest changes:
Rats exploit structural openings to infiltrate residential units. Small fissures in concrete slabs, uneven mortar joints, and unsealed expansion joints provide direct pathways from the soil to interior spaces. Moisture intrusion enlarges these voids, creating a continuous tunnel that rodents can navigate without detection.. Date latest changes:
Do Hedgehogs Eat Mice and Rats?
Hedgehogs are primarily insectivores; their stomachs are adapted to process soft-bodied prey rather than the dense muscle and bone of small mammals. When evaluating whether they include mice or rats in their diet, the nutritional composition of insects and other invertebrates provides a more accurate indicator of typical consumption patterns.. Date latest changes:
Where do rats appear in private houses
Rats infiltrate homes primarily through structural openings that compromise the integrity of foundations and walls. Small fissures, often unnoticed during construction or renovation, provide direct pathways to interior spaces. Moisture‑induced settling creates hairline cracks in concrete footings, while shifting soil pressures generate gaps around pipe penetrations and utility sleeves.. Date latest changes:
Animal Resembling a Rat but Not a Rat
The discussion concentrates on visual traits that cause certain non‑rodent mammals to be mistaken for true rats. Elongated, cylindrical body profile matches the general silhouette of a rat. Dense, coarse fur covering the entire body, typically ranging from brown to gray tones.. Date latest changes:
Ultrasonic Repellers for Mice and Rats: How They Work
Ultrasound refers to sound waves with frequencies above the upper limit of human hearing, typically greater than 20 kHz. These waves are produced by rapid mechanical vibrations of a transducer, which converts electrical energy into acoustic energy.. Date latest changes:
Dream About Mice and Rats: Meaning
Dreams featuring mice often signal subtle concerns that have escaped conscious awareness. The animal’s small size and timid behavior translate into symbols of vulnerability, hidden anxieties, or minor irritations that persist in daily life. When a mouse appears, the subconscious may be urging attention to details that are easily overlooked.. Date latest changes:
Small Mouse: Charming Photos of Young Mice
The allure of diminutive fauna manifests strongly when viewers encounter vivid images of juvenile rodents. Their reduced size triggers innate attentional mechanisms, prompting closer inspection and emotional engagement. Key factors underlying this fascination include:. Date latest changes:
Field Mouse Bite: How to Avoid and What to Do
A field mouse bite displays a set of recognizable physical signs that facilitate prompt assessment. Small puncture wound, typically 1–3 mm in diameter Slightly irregular edges caused by the animal’s sharp incisors Minimal bleeding at the moment of injury, often a pinpoint droplet Immediate localized pain, described as sharp or pricking Rapid onset of swelling around the puncture site, sometimes accompanied by a faint red halo Possible erythema extending 0.. Date latest changes:
Which Herbs Repel Mice? Best Plant Repellents
Herbal mouse deterrents can be effective, but their deployment must respect human health, animal welfare, and ecosystem integrity. Human safety requires awareness of toxic thresholds. Many aromatic plants contain compounds such as pulegone, thujone, or menthol, which may cause irritation, respiratory distress, or liver stress at high concentrations.. Date latest changes: