Homework Help is Here – Start Your Trial Now!
Science
Biology
Part I- A Call from Anne It was late in the work day and I was rushing around trying to get some new chimps settled in their habitat when the phone rang. “Hi Lisa, it's Anne and I've got a favor to ask. I know you have some captive male orangutans at the National Zoo and I'm hoping you'll help me collect some growth, development, and behavior data on these animals. I've enlisted the cooperation of curators at other zoos in the U.S. to help me assemble this database on juvenile male orangutan development. "As you may know," Anne continued, "when juvenile males are housed together, some begin to develop the characteristic secondary sex characteristics at age four, resulting in the massive body size, large cheek flanges and laryngeal sac, while others stay juvenile looking but grow to nearly adult size. I thỉnk the difference in development might be due to variation in the effects of captive stress, mostly from the presence of other adult males. When we separate the arrested individuals from the rest, they complete their maturation to adulthood rather quickly." As an Assistant Curator at the Smithsonian National Zoo in Washington D.Č., I was in charge of the care and health of the primates and pandas, and thought this sounded like an interesting project. "I think we can do that Anne. Actually, I have also noticed those developmental differences in juvenile orangutans and always wondered why they occur." "Good, then you'll know what to look for. I need information on their housing situation, diet, medical history, growth, behavior patterns, and as they go through puberty, flange and laryngeal sac development, social interactions, and semen quality if you manage to collect that. I would also like you to collect fresh urine samples from each individual periodically. The lab at the Center for Reproduction of Endangered Species (CRES) at the San Diego Zoo will run hormone assays on the urine for me. I'll send you a spreadsheet for keeping records on each animal. You can send the urine samples and spreadsheet data to CRES for analysis. I really appreciate your help." Questions 1. Explain the normal hormonal control of male sexual development by the hypothalamus pituitary-gonad connections.

Part I- A Call from Anne It was late in the work day and I was rushing around trying to get some new chimps settled in their habitat when the phone rang. “Hi Lisa, it's Anne and I've got a favor to ask. I know you have some captive male orangutans at the National Zoo and I'm hoping you'll help me collect some growth, development, and behavior data on these animals. I've enlisted the cooperation of curators at other zoos in the U.S. to help me assemble this database on juvenile male orangutan development. "As you may know," Anne continued, "when juvenile males are housed together, some begin to develop the characteristic secondary sex characteristics at age four, resulting in the massive body size, large cheek flanges and laryngeal sac, while others stay juvenile looking but grow to nearly adult size. I thỉnk the difference in development might be due to variation in the effects of captive stress, mostly from the presence of other adult males. When we separate the arrested individuals from the rest, they complete their maturation to adulthood rather quickly." As an Assistant Curator at the Smithsonian National Zoo in Washington D.Č., I was in charge of the care and health of the primates and pandas, and thought this sounded like an interesting project. "I think we can do that Anne. Actually, I have also noticed those developmental differences in juvenile orangutans and always wondered why they occur." "Good, then you'll know what to look for. I need information on their housing situation, diet, medical history, growth, behavior patterns, and as they go through puberty, flange and laryngeal sac development, social interactions, and semen quality if you manage to collect that. I would also like you to collect fresh urine samples from each individual periodically. The lab at the Center for Reproduction of Endangered Species (CRES) at the San Diego Zoo will run hormone assays on the urine for me. I'll send you a spreadsheet for keeping records on each animal. You can send the urine samples and spreadsheet data to CRES for analysis. I really appreciate your help." Questions 1. Explain the normal hormonal control of male sexual development by the hypothalamus pituitary-gonad connections.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
See similar textbooks
icon
Related questions
Question
The Case of the Sexually Arrested Orangutans Name Part I- A Call from Anne It was late in the work day and I was rushing around trying to get some new chimps settled in their habitat when the phone rang. "Hi Lisa, it's Anne and I've got a favor to ask. I know you have some captive male orangutans at the National Zoo and I'm hoping you'll help me collect some growth, development, and behavior data on these animals. I've enlisted the cooperation of curators at other zoos in the U.S. to help me assemble this database on juvenile male orangutan development. "As you may know," Anne continued, “when juvenile males are housed together, some begin to develop the characteristic secondary sex characteristics at age four, resulting in the massive body size, large cheek flanges and laryngeal sac, while others stay juvenile looking but grow to nearly adult size. I thỉnk the difference in development might be due to variation in the effects of captive stress, mostly from the presence of other adult males. When we separate the arrested individuals from the rest, they complete their maturation to adulthood rather quickly." As an Assistant Curator at the Smithsonian National Zoo in Washington D.Č., I was in charge of the care and health of the primates and pandas, and thought this sounded like an interesting project. "I think we can do that Anne. Actually, I have also noticed those developmental differences in juvenile orangutans and always wondered why they occur." "Good, then you'll know what to look for. I need information on their housing situation, diet, medical history, growth, behavior patterns, and as they go through puberty, flange and laryngeal sac development, social interactions, and semen quality if you manage to collect that. I would also like you to collect fresh urine samples from each individual periodically. The lab at the Center for Reproduction of Endangered Species (CRES) at the San Diego Zoo will run hormone assays on the urine for me. I'll send you a spreadsheet for keeping records on each animal. You can send the urine samples and spreadsheet data to CRES for analysis. I really appreciate your help." Questions 1. Explain the normal hormonal control of male sexual development by the hypothalamus pituitary-gonad connections. 2. What are the stress hormones? How do they act? Specifically, how does stress affect growth and development? 3. What sort of data might support Anne's hypothesis that arrested sexual development of juvenile orangutan males is a result of social stress?
Transcribed Image Text:The Case of the Sexually Arrested Orangutans Name Part I- A Call from Anne It was late in the work day and I was rushing around trying to get some new chimps settled in their habitat when the phone rang. "Hi Lisa, it's Anne and I've got a favor to ask. I know you have some captive male orangutans at the National Zoo and I'm hoping you'll help me collect some growth, development, and behavior data on these animals. I've enlisted the cooperation of curators at other zoos in the U.S. to help me assemble this database on juvenile male orangutan development. "As you may know," Anne continued, “when juvenile males are housed together, some begin to develop the characteristic secondary sex characteristics at age four, resulting in the massive body size, large cheek flanges and laryngeal sac, while others stay juvenile looking but grow to nearly adult size. I thỉnk the difference in development might be due to variation in the effects of captive stress, mostly from the presence of other adult males. When we separate the arrested individuals from the rest, they complete their maturation to adulthood rather quickly." As an Assistant Curator at the Smithsonian National Zoo in Washington D.Č., I was in charge of the care and health of the primates and pandas, and thought this sounded like an interesting project. "I think we can do that Anne. Actually, I have also noticed those developmental differences in juvenile orangutans and always wondered why they occur." "Good, then you'll know what to look for. I need information on their housing situation, diet, medical history, growth, behavior patterns, and as they go through puberty, flange and laryngeal sac development, social interactions, and semen quality if you manage to collect that. I would also like you to collect fresh urine samples from each individual periodically. The lab at the Center for Reproduction of Endangered Species (CRES) at the San Diego Zoo will run hormone assays on the urine for me. I'll send you a spreadsheet for keeping records on each animal. You can send the urine samples and spreadsheet data to CRES for analysis. I really appreciate your help." Questions 1. Explain the normal hormonal control of male sexual development by the hypothalamus pituitary-gonad connections. 2. What are the stress hormones? How do they act? Specifically, how does stress affect growth and development? 3. What sort of data might support Anne's hypothesis that arrested sexual development of juvenile orangutan males is a result of social stress?
Part II-Data Analysis "How are your orangutans behaving Lisa?" It was Anne calling again about her project. I told her my captive orangutans had remained healthy and active the past three years during which I had been collecting the necessary data and forwarding it for analysis to the Center for Reproduction of Endangered Species at the San Diego Zoo. "Great. I'm sending you a report with the data summarized so far from zoos and a total of males. We've measured cortisol and prolactin levels in the urine and made comparisons of hormone levels in four groups of orangutans: juvenile, arested adolescent, developing adolescent, and adults." Below are Ánne's data graphed to show means and standard errors. I'm not sure what it all means. Figure 1. Urinary cortisol levels expressed as ug of hormone per mg of creatinine in four different groups of captive male orangutans. Asterisks indicate groups significantly different from developing males. 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 Juveniles Arrested Developina Cortisol Figure 2. Urinary prolactin levels expressed as ng per mg of creatinine in four different groups of captive male orangutans. Asterisks indicate groups significantly different from developing males. 25 20 15 10 Juveniles Arrested Developing Adults Prolactin Questions 1. What are the significant trends in these data? What can you conclude about stress levels in arrested vs. developing males? 2. Why do you think stress hormones are higher in developing males than in arrested or fully mature males? 3. According to these data, is stress the explanation for arrested development? g/mg creatinine aujugean bu/brl
Transcribed Image Text:Part II-Data Analysis "How are your orangutans behaving Lisa?" It was Anne calling again about her project. I told her my captive orangutans had remained healthy and active the past three years during which I had been collecting the necessary data and forwarding it for analysis to the Center for Reproduction of Endangered Species at the San Diego Zoo. "Great. I'm sending you a report with the data summarized so far from zoos and a total of males. We've measured cortisol and prolactin levels in the urine and made comparisons of hormone levels in four groups of orangutans: juvenile, arested adolescent, developing adolescent, and adults." Below are Ánne's data graphed to show means and standard errors. I'm not sure what it all means. Figure 1. Urinary cortisol levels expressed as ug of hormone per mg of creatinine in four different groups of captive male orangutans. Asterisks indicate groups significantly different from developing males. 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 Juveniles Arrested Developina Cortisol Figure 2. Urinary prolactin levels expressed as ng per mg of creatinine in four different groups of captive male orangutans. Asterisks indicate groups significantly different from developing males. 25 20 15 10 Juveniles Arrested Developing Adults Prolactin Questions 1. What are the significant trends in these data? What can you conclude about stress levels in arrested vs. developing males? 2. Why do you think stress hormones are higher in developing males than in arrested or fully mature males? 3. According to these data, is stress the explanation for arrested development? g/mg creatinine aujugean bu/brl
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Evolutionary Adaptations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS