Explain why men have nipples, and why mammary glands normally function only in females? Why do dogs have dewclaws? Why are dogs' noses wet? Why do humans not use their skin for gas exchange? Why are humans more varied than animals in appearance? Why is bipedalism important to human evolu...
Mammary Glands. ... Rostrum. What are the front limbs of whales bats and cats? An example of homologous structures are the limbs of humans, cats, whales, and bats. Regardless of whether it is an arm, leg, flipper or wing, these structures are built upon the same bone structure. Homol...
Despite the name of a whale shark including the word 'whale', which are mammals, a whale shark is in fact a fish.Whale sharks don't have mammary glands to suckle their youngand they are not warm blooded like mammals. Which animal has a backbone? The 5 groups ofvertebrates(animals that ...
Amphibians do have ears, but not in the same way that you might think of mammals having ears. On humans, the ear is an obvious feature located at...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your t...
Animal homosexuality and natural diversity”,Canadian biologist Bruce Bagemihlnoted that a couple of primate species have been seen stimulating their own nipples while masturbating. Researchers have long speculated that humans evolved the fatty deposits around the female mammary glands for sexual reasons....
Mammals are warm-blooded vertebrates whose bodies are covered in hair or fur. Female mammals have mammary glands that secrete milk for their young, and almost all give birth to live young. This class of animals includes about 5000 species, ranging from rhinos to wolves to sloths to humans to...
Mammary cancer:this is common in dogs that have not been spayed. It can occur in any of the mammary glands, or as multiple cancers in the glands and surrounding lymph nodes. If you notice that your dog has become suddenly lethargic, is drinking more water than usual and doesn’t want to...
Dolphins nurse their young with milk from the female's mammary glands Dolphins are warm-blooded Dolphins have lungs to breathe air Dolphins are all vertebrates Dolphins have hair on their on their upper jaw at birth but it drops o Approximately 40% of the world's 500 shark species lay their...
Ndst1f/fMMTVCre+ mammary glands do not form lobuloalveoli.Brett, E. Crawford
(Fig. 6.5). Other signs that may be present are torticollis, nasal or ocular discharge, dyspnea and cyanosis, hematuria and hemoglobinuria, cyanotic and swollen mammary glands, abortions, stillbirths, and unexpected deaths, although the presence of enlarged cervical nodes in otherwise healthy guinea...