THE OLD WORLD HARVEST MOUSE IS A SOLITARY ANIMAL
THE OLD WORLD HARVEST MOUSE IS NOT TOO SOCIAL
OLD WORLD HARVEST MICE ARE NATURALLY REALLY REALLY AGGRESSIVE TOWARDS EACH OTHER
MALES ARE AGGRESSIVE TO MALES
FEMALES ARE AGGRESSIVE TO FEMALES
FEMALES ARE AGGRESSIVE TO MALES
MALE AND FEMALE OLD WORLD HARVEST MICE ARE ONLY FRIENDLY WHEN IT IS THE TIME FOR MATING
MICE ARE NOT ACTUALLY AT ALL QUIET .. THE WAY THAT HUMANS BELIEVE THEM TO BE
OLD WORLD HARVEST MICE MAKE ALL SORTS OF SOUNDS OF COMMUNICATION
OLD WORLD HARVEST MICE ARE ACTUALLY QUITE NOISY !!!
THE SOUNDS OF MOUSE COMMUNICATION ARE GENERALLY ABOVE THE RANGE OF HUMAN HEARING !
COMMUNICATION SOUNDS .. HIGH FREQUENCY SQUEAKS
male old world harvest mouse sings a love song to the female
male communicates with the female using ultrasonic vocal sounds
the vocalizations have a musical pattern
as a human song does
the songs are a pre-mating ritual
( just exactly like a human love serenade !!!)
BOTH THE MALE AND FEMALE OLD WORLD HARVEST MOUSE
ARE REPRODUCTIVELY MATURE BETWEEN 5 - 6 WEEKS OF AGE
THE MATING PERIOD OF TIME IS FROM
APRIL - OCTOBER
THE FEMALE OLD WORLD HARVEST MOUSE NORMALLY WILL MATE AT LEAST
1 TIME IN THE YEAR
most often she will mate 2 times in the year
if conditions are just right she may mate 3 times in the year
each successful mating will produce a group of OLD WORLD HARVEST MOUSE babies
the group of old world harvest mouse babies is called a litter
a female can produce between 1 - 6 litters of babies in her lifetime
after the female has successfully mated .. she will begin her period of gestation
gestation for a harvest mouse is between 17 - 19 days
the harvest mouse mom can have between 3 - 8 babies per litter
usually 3 - 5
need a high reproductive rate because they have a high mortality rate
the female OLD WORLD HARVEST MOUSE has a 4 day estrus cycle .. more than 1 time in the year
there is a courtship display between the male and female old world harvest mouse
starts APRIL - MAY
FIND POTENTIAL MATES WITH SCENT
BOTH MALE AND FEMALE USE SCENT MARKING
accomplished by urination
urine scent has pheromones
female gives off scent in her urine ..
pheromones are chemical messengers
scent marking is a way for harvest mice to communicate with each other
males respond to scent .. urinate ..
female checks male urine to make a chemical analysis .. to determine that male is not related to her ..
THE CHEMICAL ANALYSIS IS VITALLY IMPORTANT SO FEMALE CAN SECURE BIOLOGICALLY
UNRELATED GENETIC MATERIAL TO MAKE REALLY HEALTHY BABIES !
OLD WORLD HARVEST MICE DO NOT MATE WITH RELATIVES !!!
mating with close relative or inbreeding would create negative results ..
small litter numbers
small physical size
these results would harm the harvest mouse species
would lead to reduction in total harvest mouse species population
would contribute to the extinction of the entire species of harvest mouse ! ! !
IF HER BRAIN RECOGNIZES ANY CHEMICAL ELEMENTS IN HIS URINE .. SHE REJECTS HIM
IF SHE DOES NOT RECOGNIZE ANY .. HE IS AN ACCEPTABLE MATE
OLD WORLD HARVEST MICE ARE A BIT AGGRESSIVE TO EACH OTHER ...
MALES AND FEMALES ARE FRIENDLY ONLY AT THE TIME OF MATING
they may even fight !! she may attack him !!!
male will sing to female ..
actually sings a musical love song type of call to the female
song is a shrill shrill shrill high pitched cry
most of which is beyond range of human hearing
FINALLY SHE WILL ACCEPT ONE OF THE POTENTIAL MATES
AND THEY MATE
after mating the female harvest mouse has a brief gestation period
she then gives birth
old world harvest mice have a short gestation period and give birth to underdeveloped babies
if the baby embryos reached their full development inside the mom
the increased nutritional requirements for the mom would be enormous
it would be super hard for the mom to find enough food every day for her needs and
for the growing embryos ..
the weight of the mom would increase tremendously
she would then be in great danger from predators ..
because she would be so heavy that she would become very slow
shortly after giving birth
the mom forages for her own physical nutritional needs
for extra food for her milk production
without the weight of the big developing embryos she is able to move very FAST !
WE NEED NEVER FEEL LONELY IN THE FIELDS OR WOODS
BIRDS AND ANIMALS .. AND THE BUTTERFLIES
SPEAK TO US
OFTEN WE ARE NOT REALLY LOOKING OR LISTENING
IT IS THE SAME AT NIGHT
THE STARS SPEAK TO US
WE HAVE TO LEARN TO LOOK AND TO LISTEN
WE ARE NEVER ALONE
EVERYTHING IN NATURE IS BEAUTIFUL
THE NATURAL WORLD IS PERFECT
EXUBERANCE IS BEAUTY
|" The eyes of the LORD are on those|
whose hope is in His unfailing love "