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Most hummingbirds exhibit sexual dimporphism meaning that the male looks different than the female. Most male hummingbirds are much more brightly colored than their mates. Females tend to be very drabbly colored so that they blend into their surroundings better. Blending in is particularly helpful when the female is sitting on a nest. If she were brightly colored like a male, she would draw attention to herself and risk putting herself and her chicks in danger.
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∙ 13y ago
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∙ 15y agoHouse sparrow males are easily identified by the dark brown on top of their head.
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∙ 15y agoif their tail is long it's a boy, if it's short is a girl
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∙ 15y agoTweety is a boy because the person who plays the voice of him is also a guy.
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In a species of bird the male compete to try to fertilize the females which trait would you expect these birds to have?
males that are much larger than females
Why do ruddy ducks have blue beaks?
The males only have blue beaks during the summer. Since summer and spring is their breeding time, I guess it's to attract mates or to let the females know that they are males, but they have many other ways to let the females know they are males.
Which female mammals are bigger than males?
In species such as mammals and birds the male species is typically larger than females. However, other than those the opposite occurs. In the majority of reptiles the females are larger than the males except lizards and crocodiles and most insects the female is larger than the males.
How do birds make out?
Male and female birds have a vent that is called a cloaca. This vent is shared by the digestive and reproductive systems. When both females and males are ready to breed, they rub their cloacas together.
Why males more aggressive than females?
I am a male but I'll have to be honest. The answer to this question is that this is the difference of hormones which makes men/males so angry and aggressive. And also i want to say that the females have more maturity than males because the puberty in women/females starts earlier than males, and as you know puberty is a step to maturity and responsibilities.
Do birds have xy chromosomes?
Yes, but unlike with mammals, in the case of birds females have XY, and males have XX. With mammals like us males have XY and females have XX.
A scientist studies a species of bird. The males and females look very similar in color but the males are much larger than the females. What can the scientist conclude about these birds?
the males compete to fertilize
A scientist studies a species of bird in which the males and females are about the same size. The females have plain colors and the males have bright colors. What can the scientist conclude about these birds?
The females choose mates. (Apex)
What traits would you expect birds to have?
Males that are much larger than females.
How is a male hummingbird different from a female hummingbird?
In many birds the males have more beautiful colors than females because the females don't need them. The males use them to scare off other males and to attract females. The females don't need them for anything.
What kind of selection occurs in many birds when males that build strong nests and heip care for young are chosen by females as mates?
This is general sexual selection of males by females.
How do tortoises attract mates?
As with most birds the males are brightly colored to attract the females.
Do guinea pigs know when there pregnant?
Yes, the females will know when they are pregnant. Other females will know too if they are housed together. The males will know because the pregnant female will have nothing to do with the males if she is pregnant.
How do you know if your overweight for 14 year old?
I would say, For males = for large males 180, for small males, 165 For females = for large females 150, for small females 140 I have know dozens of people under to these numbers, and they looked great!
In a species of bird the male compete to try to fertilize the females which trait would you expect these birds to have?
males that are much larger than females
At a bird sanctuary Ricky counted 88 birds Of the birds he counted 16 were baby birds If he counted an equal number of adult males and females how many adult female birds did Ricky count?
Ricky would have counted 36 adult female birds. . out of 88, 16 were babies and the rest were adults. so 88-16=the number of adult birds = 72 if there was the same number of females as there were males, 72 divided by 2 is 36 so there are 36 females, 36 males and 16 babies (all add up to 88) so the answer is 36
How did moas mate?
Moas were peaceful giant birds. Females grew larger than males and recent discoveries suggest the males performed loud mating calls to attract females. The females would lay eggs that the male would fertilize.
