The sight of a mother hedgehog chewing on her newborn babies is shocking and disturbing. As caring animals, shouldn’t mothers nurture their young? Why then would a hedgehog commit such an act? Read on as we unravel the mysteries behind this unusual phenomenon.
If you’re short on time, here’s the quick answer: Mother hedgehogs sometimes eat their babies due to stress, first-time parenting inexperience, sensing defects in the babies, or lack of resources to feed a large litter. It’s not natural behavior, but survival instinct.
In this comprehensive guide, you’ll gain a deeper understanding of the hedgehog’s reproduction process, maternal behavior, and the scenarios that unfortunately lead to cannibalism of their young.
Understanding Hedgehog Reproduction and Maternal Behaviors
Gestation Period and Litter Size
The gestation period for hedgehogs typically lasts around 30-40 days. During this time, the growing hedgehog embryos will develop spikes, limbs, organs and other defining features. The average litter size for hedgehogs falls between 4-7 hoglets (baby hedgehogs).
Some factors like the mother’s age, health and nutrient intake can impact litter size. Interestingly, the number of hoglets is usually not correlated to the number of nipples a mother hedgehog has. They can nurse more hoglets than nipples through positioning the litter.
According to Hedgehog Central, experienced breeders may welcome litters of 5-8, while smaller litters of 3-4 are more common in first-time mother hedgehogs.
Newborn Hedgehogs – Altricial Animals
Hedgehog hoglets are born underdeveloped with closed eyes and ears. They are completely dependent on their mother’s care and need her constant nurturing. This makes newborn hedgehogs altricial animals. At birth, hoglets weigh around 15-30 grams and fit in the palm of your hand😊.
They cannot walk, unroll, or forage food for the first 2 weeks. Hedgehog hoglets first open their eyes at around 14 days and leave the nest for solid food around 4-6 weeks old. Even after weaning, the mother continues protecting and teaching her offspring self-defense behaviors like balling up into a prickly ball when scared.
Mother’s Nurturing and Protective Nature
Mother hedgehogs are known for their attentive nurturing instincts. They keep the newborn litter warm by curling her body around the nest. The mothers are very protective over their helpless hoglets and may hiss or prickle when the nest is disturbed🤭. She stays close to feed them every 2-3 hours.
The milk production and composition adapt to the growing nutritional needs of her litter. Amazingly, if a mother loses some of her babies, she can re-absorb the milk to stop production for fewer mouths to feed👍.
According to MSPCA, to stimulate urination and defecation, she will lick the genital area of her babies and eat the waste – keeping the nest clean for the litter. Now that’s true dedication! As the hoglets grow, she will bring them solid food and teach foraging skills.
Her attentive care ensures the best survival outcomes for her offspring.
Why Mothers Eat Their Babies – Exploring the Major Reasons
Stress and Anxiety Causing Abnormal Behavior
Mother hedgehogs eating their young is an extreme stress response. If the mother feels threatened or lacks adequate shelter and resources, she may kill the hoglets as an act of survival. Removing the stressors like predators, noise, and scarcity of food/water can prevent this behavior (Source).
First-Time Moms Lacking Parenting Experience
According to hedgehog experts, first-time moms account for 95% of incidents where mothers eat their babies. Their inexperience leads to situations they are not equipped to handle, triggering stress. Providing extra support like safe spaces and plenty of food/water helps first-time mothers adjust (Source).
Sensing Defects in the Litter
If a mother hedgehog senses something wrong with the hoglets like diseases, deformities or weaknesses, she may eat them to conserve resources for the stronger ones. Removing sick/deformed babies upon birth and providing vet care can prevent this.
Interestingly, father hedgehogs have never been observed eating their young (Source).
Insufficient Resources to Feed Large Litters
The average litter contains 5-6 hoglets. But if a mother delivers a much larger litter (9+ babies), she may eat some of them, especially weaker ones, if she cannot produce enough milk to feed them all.
Providing nutritional supplements and abundant food/water helps mothers support even unexpectedly large litters (Source).
| Reason | Prevention Strategies |
|---|---|
| Extreme stress | Reduce threats and provide adequate shelter, food, water |
| Inexperience of first-time moms | Provide extra support like safe spaces and ample resources |
| Sensing defects in babies | Remove sick/deformed hoglets, provide vet care |
| Inability to feed large litters | Provide nutritional supplements and abundant food/water |
While disturbing, infanticide is complex hedgehog behavior shaped by evolution. By understanding the root causes, we can prevent mothers from eating their babies through proper care strategies. With some extra support, especially for first-timers, mothers can raise even large, healthy litters successfully.
Preventing Hedgehog Filial Cannibalism
Providing a Low-Stress Environment
Hedgehogs are easily stressed creatures. A stressful environment can trigger a mother to eat her babies. To prevent this, house hedgehog mothers in a quiet space away from loud noises and excessive activity.
The enclosure should be kept at a comfortable temperature between 72-80°F with adequate nesting materials so she feels secure (Hedgehog Central). Check on mom infrequently and avoid handling babies in the first weeks to reduce disruption.
Assisting First-Time Mothers
Over 50% of hedgehog cannibalism incidents involve first-time mothers. To assist, provide extra supervision and ample food and nesting supplies. If she struggles caring for babies or rejects them, temporary separation may be needed.
Consult an exotics veterinarian for advice on assisting struggling new moms (Veterinary Partner). With support, most first-timers can become attentive mothers.
Enabling Moms to Discard Unhealthy Babies Safely
Occasionally, mother hedgehogs will reject babies that are injured, ill, or deformed. According to wildlife rehabilitators, mothers that eat unhealthy babies likely do so out of mercy. To prevent this, observe babies closely for abnormalities.
Remove any unhealthy babies for hand-raising or humane euthanasia. Provide mom a separate enclosed nest area to naturally cull babies if needed (IWRC).
Supplementing Food and Nesting Materials
Hunger and insufficient nesting supplies sometimes trigger cannibalism. Nursing mothers have nearly quadruple normal food intake needs. Provide unlimited high-protein cat or hedgehog food and replenish often.
Supply ample bedding materials the mother can arrange into a tunnel-like nest (Hedgehog Central). Stories abound of moms stopping cannibalistic behaviors once better fed and housed.
Understanding This Innate Survival Strategy
Hedgehogs eating their babies may seem shocking, but it is actually an innate survival strategy hardwired into their biology. Here’s a detailed look at why this happens:
Extreme Stress Triggers Infanticide
The main trigger for hedgehog infanticide is extreme stress. In the wild, female hedgehogs can face life-threatening crises like starvation, predation, or drastic climate fluctuations. To survive, the mother’s body goes into crisis mode and prioritizes her own survival over her offspring.
Her hormone levels change in response to stress, which can lead to eliminating the energy drain of caring for babies.
First-Time Mothers Are Most Vulnerable
First-time hedgehog mothers are especially prone to stress-induced infanticide. Raising offspring is completely new to them, so they feel extra anxious providing food, protecting the nest, and meeting their babies’ needs.
The tremendous energy demands of lactation and caregiving can quickly become overwhelming for insecure first-timers. Tragically, their inexperience may lead them to kill and consume their young.
Infanticide Allows Reserves to be Reabsorbed
For mother hedgehogs facing environmental threats, reabsorbing their offspring conserves precious resources. Pregnancy and nursing are hugely energy-intensive, rapidly draining fat reserves. By eating the babies, mothers regain the protein, nutrients and calories invested in gestation and lactation.
This replenished energy boosts the mother’s chances of surviving crisis conditions.
The Behavior May Be Adaptive Overall
While shocking, infanticide could actually benefit hedgehog populations. A mother who loses one litter but survives may go on to produce several more litters in the future. So in the big picture, sacrificing babies during an emergency may contribute to greater lifetime reproductive success.
This is likely why natural selection has preserved the behavior over evolutionary time.
Though heartbreaking, hedgehog infanticide reflects the harsh realities of nature. For these vulnerable animals, it is tragically better to sacrifice a few that jeopardize the survival of the many. With greater habitat protection and care from humans, hopefully this sad scenario can become less frequent.
Conclusion
The act of mothers eating their young may appear ruthless, but for wild hedgehogs it occasionally becomes a survival necessity. While shocking, filial cannibalism allows mothers to conserve resources and ensure the strongest babies survive when facing environmental stress.
Through better husbandry and breeding practices, hedgehog breeders can prevent mothers from viewing their tiny spiked babies as food. With an empowering start to life, the surviving hoglets have a chance to grow into delightful and inquisitive pets.
