Males tend to be 10 – 45 % larger than females ; the former normally weigh between 30 and 70 kg ( 66 – 154 lb ), and the latter between 20 and 40 kg ( 44 – 88 lb ).

Males normally cannot do this, as they have only one X chromosome, and therefore only one allele, and so calico cats are normally only female.

Males are normally buried on the left, women on the right side.

Males of many species exhibit gregarious mud-puddling behavior when they may imbibe salts from moist soils.

Males and females breeding in Russia have been shown to exhibit site fidelity towards their breeding locales from year to year, but there is no evidence as to whether they exhibit territorial fidelity.

Males are tested for telepathy ; the ones who exhibit telepathic ability are forced into addiction of a drug derived from the lymph of an animal called a sthondat.

Males generally exhibit larger home ranges than females, which some authors suggest is due to more specific habitat requirements of females ( e. g., denning or prey requirements ) that limit their ability to shift home range.

Males are territorial, and in areas of higher population density, males exhibit displays of aggression toward other males including posturing and chasing.

Males exhibit a fair amount of sexual dimorphism.

Males may fight for females in various ways, and in such species there tends to be marked sexual dimorphism.

Males who have not established such territories sometimes form small bachelor groups.

Males mark their territory by urinating on objects that stand out, such as trees, logs, or termite mounds.

Males who have not established such territories sometimes form small bachelor groups.

Males tend to have slightly thicker and longer limbs and digit bones ( phalanges ), while females tend to have narrower rib cages, smaller teeth, less angular mandibles, less pronounced cranial features such as the brow ridges and external occipital protuberance ( the small bump at the back of the skull ), and the carrying angle of the forearm is more pronounced in females.

Males of the larger species often have brightly coloured plumage as well as facial ornamentations such as wattles or crests.

Males often decorate the nest with ornaments ( such as flowers ) and fresh green material which the female later disassembles upon accepting him as a mate.

Males tend to mature faster ( 119 days on average ) than females ( 134 days on average ), but time to maturity can range from 65 to 273 days depending on a number of factors, such as temperature, humidity and photoperiod.

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Males are more likely to engage in agonistic behaviors, such as slowly circling each other, chasing or actual fighting.

Males are invariably very territorial and the superior males occupy the best habitats, such as moist mangroves, while inferior males occupy secondary habitats such as dry scrub forests.

Males are typically smaller than females, and in some species, such as Emerita rathbunae, the minute males live attached to the legs of the female.

Males spend most of their waking hours hunting for food and occasionally for treasure, such as gems and other shiny objects.

Males and females look similar ; as usual in such cases, these birds are monogamous and both partners take part in caring for the nestlings.

Males produce alarm pheromones to reduce such homosexual matings.

Males often killed their mates and captive breeding was achieved by artificial insemination and the hatching of eggs by other crane species such as the Sandhill and using floodlights to simulate the longer daylengths of the Arctic summer.

Males made more eye contact than with strangers or familiar monkeys but reacted with signs of confusion or distress, such as squealing, curling up on the floor, or trying to escape from the test room.

Males do dominate females, and thus will aggressively exclude females from food, such that females will only access food sources when unattended by the males.

Males were in charge of hunting, and presumably through this activity developed important evolutionary traits, such as increased brain size.

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Males and females are then seen in various locations such as a park and swimming pool.

Males will show territorial behaviour if another male is at the edge of his territory.

Males, however, begin to show combat behaviour in April.

Males are significantly more likely to engage in extra-pair activity when their mates are not able to observe their behaviour, and the evidence suggests that a male's frequency of extra-pair activity is negatively related to his mate's reproductive success, as measured by nestling weight and number of fledglings.

Males in most hyena species are larger than females, though the spotted hyena is exceptional, as it is the female of the species that outweighs and dominates the male.

Males are always bigger than the females, though the extent to which this is true varies dependent upon species.

Males and females do not differ in appearance, though the latter are a bit smaller.

Males will breed at 600 grams or more, but in captivity are often not bred until they are 800 grams ( 1. 7 lb ), and females will breed in the wild at weights as low as 800 grams, though 1200 grams or more is most common ; in captivity, breeders generally wait until they are no less than 1500 g ( 3. 3 lb ).

Males will threaten each other with the snort, a sound caused by expelling air though their probosces, and the clap-trap, a loud, clapping sound comparable to the sound of a diesel engine.

Males tend to be more likely to be physically aggressive whereas females tend to favour exclusion and mockery, though it has been noticed that females are becoming more physical in their bullying.

Males, however, usually remain at their natal nest and if they survive will inherit the position of breeding male ( though unders some circumstances they too disperse ).

Males, females and juveniles are similar in appearance, though young birds are a brownish-grey.

Males can grow to up to 50 cm in length, though aquarium specimens are generally much shorter.

Males tend to show higher variance on scores, though this may differ between countries.

Males tend to be smaller than females, though they have longer, flattened tails.

Males sometimes have these markings, though they are noticeably fainter ( see Illustration 1 ).

Males also spend much of their time in the tree tops, defending their territory from rivals, though they will sometimes descend to drink from puddles or feed.