List of articles № 107
Synaptic plasticity provides the cellular substrate for memory formation in rodents, allowing neural circuits to adapt their strength in response to experience. In mouse hippocampus, repeated activation of excitatory pathways produces durable enhancements of synaptic efficacy that underlie the storage of spatial and contextual information.. Date latest changes:
Disinsection methods for mice in an apartment
Droppings produced by mice are typically 3–6 mm long, dark brown to black, and tapered at one end. They are most frequently found along walls, behind appliances, in cabinets, and near food sources. Fresh specimens retain a moist appearance, while older ones become dry and crumbly.. Date latest changes:
Can Mice Transmit Rabies to Humans? Risks and Prevention
Rabies is a neurotropic virus belonging to the Lyssavirus genus. It infects mammals through the saliva of a host that is already infected, most commonly via a bite or scratch. Once inside the peripheral nerves, the virus travels centripetally to the central nervous system, where it replicates and spreads to the brain and other tissues.. Date latest changes:
Mice transmit pathogens to people primarily through direct skin trauma such as bites and scratches. When a mouse bites, oral flora and saliva can be introduced into the wound, providing a portal for bacteria like Streptococcus spp., Staphylococcus aureus , and Pasteurella spp.. Date latest changes:
How many mice does a cat need per day: feeding and benefits
Mice constitute a primary component of the feline diet because they match the nutritional requirements that domestic cats evolved to process. Their muscle tissue supplies high‑quality protein rich in essential amino acids such as taurine, arginine, and lysine, which cats cannot synthesize in sufficient quantities.. Date latest changes:
Folk remedies for mice in a private house
Mice gain access to residential interiors through a limited set of structural weaknesses. Identifying these openings is the first step in any traditional mouse‑control plan. Gaps around utility pipes and cables, typically ¼‑inch or larger.. Date latest changes:
Interesting Facts About Mice with Long Noses and Tails
Mice possessing elongated snouts and extended tails exhibit an olfactory system that rivals that of many larger mammals. The nasal cavity contains a dense array of olfactory receptors, estimated at over one million per square centimeter, allowing detection of volatile compounds at concentrations as low as parts per trillion.. Date latest changes:
Where Do Mice Appear in an Apartment on the Fifth Floor
The belief that apartments above the ground level are automatically free of rodents is unfounded. Mice possess physical traits and behaviors that allow them to reach elevations far beyond ground‑floor dwellings. Mice climb rough surfaces, grip textured walls, and exploit vertical conduits such as utility shafts, fire‑escape ladders, and exterior brickwork.. Date latest changes:
Capybaras are the largest extant rodents, reaching body lengths of 100–130 cm and standing 50–60 cm at the shoulder. Adult weight ranges from 35 kg to 66 kg, with males typically heavier than females. Fur: Dense, coarse hair covering the dorsal surface, brown to reddish‑brown;. Date latest changes:
Sound That Attracts Rats: Choosing an Effective Signal
Rats detect ultrasonic frequencies through a cochlear structure tuned to sounds above the human hearing limit. The auditory nerve transmits signals from hair cells that respond most efficiently between 20 kHz and 80 kHz, with peak sensitivity near 40 kHz.. Date latest changes:
How Long Do Rats Gestate? Pregnancy Period in Rodents
Pregnancy in rodents refers to the period from fertilization of the ovum until the birth of offspring. During this interval, the embryo undergoes rapid cell division, organogenesis, and fetal growth within the uterine environment. The condition is characterized by hormonal changes, notably a rise in progesterone and estrogen, which sustain the uterine lining and suppress estrous cycles.. Date latest changes:
What a Rat's Snout Looks Like: Photos and Description
The rat’s snout is a compact, triangular projection extending forward from the skull. Its length typically measures 1.5–2 cm in adult specimens, while the width at the base ranges from 0.8–1.2 cm. The surface is covered with fine, moist fur that transitions to a smoother, hair‑less pad at the tip, known as the rhinarium.. Date latest changes:
Dried fruit is occasionally offered to pet rats as a treat. The primary nutritional concern is protein content, because rats rely on adequate protein for growth, tissue repair, and immune function. Raisins: approximately 3 g protein per 100 g.. Date latest changes:
When evaluating top rat cage options, the smallest acceptable enclosure size is a critical specification. Minimum interior dimensions ensure adequate movement, exercise, and environmental enrichment, directly influencing health and welfare. Floor area:. Date latest changes:
Sound to Attract Rats: Which Frequencies Work Best
Rats possess a highly acute auditory system that extends well beyond the human hearing range. Their cochlear structure responds to frequencies from approximately 200 Hz up to 80 kHz, with peak sensitivity centered between 8 kHz and 20 kHz. Above 20 kHz, the auditory threshold rises gradually, yet rats continue to detect ultrasonic sounds up to the upper limit of their range.. Date latest changes:
Do Rats Eat Frogs? Rodent Feeding Habits
Rats are true omnivores, consuming a wide range of organic material from seeds and grains to carrion and live prey. Their dentition, gastrointestinal tract, and foraging behavior are adapted to process both plant and animal matter efficiently.. Date latest changes:
Leaf lettuce is a low‑calorie vegetable that can be incorporated into a rat’s diet without compromising nutritional balance. Its composition includes high moisture content, dietary fiber, and a range of micronutrients that support physiological functions.. Date latest changes:
What Fears Do Rats Have in a Home Environment?
Rats living in residential spaces display a pronounced aversion to animals that exceed their own size. The reaction originates from evolutionary conditioning that associates larger predators with lethal threat. Key sensory triggers include:. Date latest changes:
Can Rats Be Given Chocolate: Why It’s Harmful
Rats are opportunistic eaters, yet many owners rely on inaccurate beliefs when choosing foods. Rats thrive on a balanced mix of grains, fresh vegetables, and limited protein; they do not require sugary treats for energy. Commercial rat pellets provide complete nutrition;. Date latest changes:
What a Rat Bite Looks Like: Photo
Photographic evidence of a rat bite reveals two distinct puncture marks that correspond to the animal’s incisors. The wounds appear as narrow, oval or circular indentations, each typically ranging from 2 mm to 5 mm in diameter. Depth varies with the force of the bite and the thickness of the victim’s skin;. Date latest changes:
Ultrasound from mice and rats: How the sound works
Rodent ultrasonic emissions occupy the frequency band from roughly 20 kHz to 100 kHz, well above the upper limit of human auditory perception. Mice typically generate calls centered around 40–70 kHz, while rats produce vocalizations near 20–30 kHz and occasional higher‑frequency bursts up to 80 kHz.. Date latest changes:
Rats possess a retina in which rods outnumber cones by a factor of roughly 10 : 1. This rod‑dominant composition determines the visual capabilities of pet rats under scotopic (low‑light) conditions. Rods contain the photopigment rhodopsin, which is highly sensitive to single photons.. Date latest changes:
Can Pet Rats Be Given Fresh Cabbage?
Pet rats require a diet that supplies the three essential macronutrients: protein, fat and carbohydrate. Each macronutrient contributes to growth, tissue repair, energy metabolism and overall health. Protein – necessary for muscle development and enzyme synthesis.. Date latest changes:
Why a Rat Rolls onto Its Side When Walking and Falls
Rats that exhibit a side‑lying gait display a distinct posture that compromises stability. The torso tilts laterally, often exceeding a 30‑degree angle from the horizontal plane, while the spine remains relatively rigid, limiting corrective flexion.. Date latest changes:
The Most Effective Method for Destroying Water Rats on a Property
Understanding the anatomy and behavior of water rats is essential for selecting an eradication technique that works reliably on residential and commercial sites. Length: 20–30 cm body, tail adds another 15–25 cm, allowing rapid movement through narrow burrows and vegetation.. Date latest changes:
The dark‑colored field rodent belongs to the family Muridae, genus Apodemus, and is identified scientifically as Apodemus sylvaticus . This taxon is distributed across temperate zones of Europe and western Asia, inhabiting grasslands, cultivated fields, and forest edges.. Date latest changes:
Male mice: aspects of sexual behavior
The sexual drive of male rodents is orchestrated by a distributed neural circuit that integrates hormonal signals, sensory input, and reward processing. Central to this circuit is the medial preoptic area (MPOA), which receives androgenic stimulation and projects to motor nuclei that initiate copulatory actions.. Date latest changes:
Mouse and Rat Sounds: How to Recognize and Interpret Them
Scuttling and scratching noises arise when rodents move across hard surfaces or manipulate nesting material. The sound originates from rapid footfalls and the interaction of claws with wood, plastic, or metal. Frequency analysis shows a dominant band between 4 kHz and 12 kHz, with higher harmonics extending beyond 20 kHz in some species.. Date latest changes:
Pink Poison for Mice: Effectiveness and Safety
The pink rodent bait relies on a limited set of toxic agents that disrupt physiological processes in mice. These compounds are selected for rapid onset of lethality and for minimal persistence in the environment. Brodifacoum (second‑generation anticoagulant) – inhibits vitamin K recycling, leading to fatal hemorrhage within 48–72 hours.. Date latest changes:
Wild mice demonstrate opportunistic feeding behavior, exploiting any accessible energy source to sustain growth and reproduction. Their diet reflects immediate availability rather than strict preference, allowing rapid adaptation to fluctuating environments.. Date latest changes:
Electronic Mouse Repellent: Real Reviews and Effectiveness
Ultrasonic devices emit sound waves above 20 kHz, a range inaudible to humans but detectable by rodents. The emitted frequencies disrupt the auditory system of mice, causing discomfort that encourages avoidance of the treated area. Most commercial units operate between 30 kHz and 55 kHz, delivering pulses at intervals designed to prevent habituation.. Date latest changes:
Ultrasound for Repelling Mice: Effectiveness
Ultrasonic deterrent devices operate by emitting sound waves at frequencies above the human audible range, typically between 20 kHz and 100 kHz. Mice possess auditory receptors tuned to this spectrum, allowing the waves to be detected and processed by their cochlear hair cells.. Date latest changes:
Do mice transmit mouse fever? Veterinary answers
Hantavirus is a single‑stranded RNA virus belonging to the family Hantaviridae. It infects rodents worldwide, with each viral species typically associated with a specific host genus. In North America, the principal reservoir is the deer mouse (Peromyscus maniculatus), while in Europe and Asia, various species of the genus Apodemus and Myodes serve as natural carriers.. Date latest changes:
Simple methods to eliminate mice in the house
Droppings are a primary indicator of a mouse presence inside a residence. They appear as small, dark, rice‑shaped pellets, typically found along walls, behind appliances, in cabinets, and near food storage areas. Their size, color, and consistency differentiate them from insect feces;. Date latest changes:
Varieties of Mice: Photos, Names, and Characteristics
Mouse breeds differ in size, coat pattern, coloration, and behavioral tendencies. Adult body length typically ranges from 5 cm to 12 cm, while tail length may equal or exceed the body. Weight varies between 10 g and 45 g, reflecting genetic lineage and diet.. Date latest changes:
Effective Sound for Repelling Mice Online
Ultrasonic deterrents emit sound waves above 20 kHz, a range beyond human hearing but well within the auditory capacity of mice and rats. Laboratory measurements show that rodents detect frequencies up to 80–100 kHz, with peak sensitivity between 30 and 50 kHz.. Date latest changes:
Can Rats Laugh? Scientific Observations
Human laughter constitutes a coordinated motor response that integrates neural, respiratory, phonatory, and facial systems. The event begins with emotional processing in limbic structures, particularly the amygdala and anterior cingulate cortex, which evaluate social cues and trigger a cascade toward motor execution.. Date latest changes:
Two Female Rats: Social Bonds Among Rodents
Research on two female rats’ social interactions reveals several variables that shape the emergence and stability of groups. Genetic relatedness frequently predicts initial association, as kin recognition mechanisms guide affiliative behavior.. Date latest changes:
How Does a Rat Sneeze? Respiratory Physiology
The upper respiratory tract of a rat consists of a compact series of structures that condition inhaled air and generate the mechanical forces required for a sneeze. Air enters through the external nares, passes into the nasal cavity where it contacts a highly vascularized mucosal lining.. Date latest changes:
Rats emit low‑frequency vocalizations that differ markedly from their ultrasonic calls. The grunts typically occupy a frequency band between 100 Hz and 500 Hz, with a fundamental tone near 200 Hz and prominent harmonics extending to 1 kHz. Peak sound pressure levels measured at a distance of 10 cm range from 55 dB to 70 dB SPL, sufficient for detection by conspecifics and human observers in quiet environments.. Date latest changes: