what is the difference between male crabs and female crabs?
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Male crabs will have bright blue claws like the first picture below. Female crabs, however, have red tips on their claws like in the second picture. ... A second way to tell the difference between males and females is by the shape of their “apron”. If you look at a crab's underside, there's a flap with a distinct shape.
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It is difficult to tell the difference between a male and female seagull. The male tends to have brighter, more colourful plumage but the difference is so subtle, that only experienced bird watchers can tell the gender of a gull.
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Male argonaut octopuses are smaller than the females, and the male's hectocotylus simply stays intact inside the female's mantle "until the female is ready to use the sperm for fertilization", Mather says. ... The females can be 2m long, while the males are just a few centimetres.
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A male hermit crab won't have any appendages on his abdomen. A female hermit crab will have three feathery looking appendages only on the left side of her body. These feathery appendages allow the female to hold eggs securely prior to their release.
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Females Have Big Aprons When you flip a male and female Alaskan king crab over, you can readily see a difference in the tail flaps that fold over the bottoms of their shells. ... The female's apron appears bell-shaped, while the male's looks like the letter T.
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Male vs. Female Mosquito Appearance female mosquito antennae is the simplest way to tell the difference. Males have feathery antennae that help them sense their potential mates' wingbeats. Conversely, female mosquitoes have especially plain antennae. ... In terms of size, female mosquitoes are generally larger than males.
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Male orcas are much larger and heavier than females, growing as long as 32 feet and weighing 11 tons, while females grow up to 28 feet in length but tip the scales at 7 tons. The size of the dorsal fin is also a strong indication of gender. ... The flippers of adult males are also longer and broader than those of females.
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Male grasshoppers are smaller than females. That's the easiest way to tell the difference if you don't have a specimen in hand. If you do have a grasshopper to examine, check the end of the abdomen. Grown males have a hard and smooth plate on the abdomen's end, which ranges in size from small to quite prominent.
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Even though crabs are into hair, they usually don't like to hang out in the hair on top of your head. Pubic lice are different than head lice, and you usually don't get crabs in the hair on your head. Head lice usually don't show up in the pubic area, either.
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The most striking difference between male and female red-tailed hawks is that the female is one third larger than the male. According to the website All About Birds, female hawks are large enough that they often are mistaken for eagles, while males do not give off this impression.
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The male is larger than the female, his beak is longer, less arched, with longer terminal hook. The female, also, has a broader beak, has green underwing-coverts (whereas the male has black); her beak is less bright in colour, and her face and rump paler.
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Male and female crocodilians can be hard to tell apart visually. Usually, the best indication is size - males grow larger than females in all crocodilian species, and so a very large individual is more likely to be a male.
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Physically, the male and female bees look almost alike. The key difference is the markings on their heads. Males have small white markings, and the females have pure black heads. A male carpenter bee with a white head marking.
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There is a difference between the carapace size of female and male tortoises; females have longer shells than males. ... Irregularities may also occur in which a male is particularly large and a female is small. In this way, both would coincide in a certain size despite the difference in sexes.
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As Figures 1 and 2 show, both male and female chickens have these basic parts. The differences between males and females include the size of the comb and wattles, the size of the spurs (in older birds), and the characteristics of the hackle and cape feathers.
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The sex of sea urchins cannot, with very few exceptions, be ascertained by any external morphological character. A very simple method of distinguishing male and female is to pass an alternating electric current of 10 volts through the animal, and it will at once shed its sperm or eggs.
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From a distance, males and females look the same. Only by turning them over can you see the physical difference between males and females. If you see nothing, the squirrel is female. Male squirrel genitalia is similar to male dog or cat genitalia.