Good morning, Year 5!
Thank you to everyone who posted in the last Science blog. If you haven’t had a chance, please take a look at the blog and try to guess who is in the baby photos!
Click here for the blog: Growing Up and Growing Old Year 5 Blog
Please take another look at the previous blog I just shared to remind yourself of gestation.
Gestation is the period of time that a mammal carries her offspring, or babies, inside her body before giving birth. The length of gestation is different for each type of mammal.
Watch this fascinating video of a horse giving birth: BBC KS2 Science Horse Giving Birth
Why do you think a baby horse needs to be able to walk within a few minutes, but a human baby might not be able to stand until about nine months?
Here are some fascinating photos of animals in wombs:
cow in womb
lion in womb
and my favourite….
shark in womb
Today’s task:
Tell me what do these results show you? Can you write a conclusion based on these results?
SUPPORT: Try to answer questions such as: which animal has the longest/shortest pregnancy? Put the numbers in order from smallest to largest first.
EXTENSION: Compare the gestation period of different mammals here: Gestation_Periods
I think that bigger animals take longer to develop. Do you agree with me?
Use the information from the table to explain your answer.
As it is Thursday, Miss Coleman and Miss Carruthers will kindly respond to the blogs today. Thank you both!
Mrs Avdiu
A printable version of this blog can be found here: Science Blog Thursday
Hello everyone
Gestation
First there is just one little cell called a zygote and then it starts to develop into a embryo. As time goes on, the embryo becomes a foetus, with more features such as skin, bones, blood and organs. The fully developed baby exists in the mother’s body at the end of the gestation.
I don’t think that bigger animals take longer to develop because on the table a lion takes 108 days and a human takes 266 days but a lion is bigger than a human so I think that the mammals who have more complex brains take longer to develop
I hope everyone has a great day ?
Hello Mathilde,
It’s so wonderful to see you commenting on the Blogs. I hope you have a great day too.
Thank you for your interpretation of the data-you have made some strong points, backed up by evidence. Well done.
Hello everyone
Gestation
First there is just one little cell called a zygote and then it starts to develop into a embryo. As time goes on, the embryo becomes a foetus, with more features such as skin, bones, blood and organs. The fully developed baby exists in the mother’s body at the end of the gestation.
I don’t think that all bigger animals take longer to develop because on the table a lion takes 108 days and a human takes 266 days but a lion is bigger than a human so I think that the mammals who have more complex brains take longer to develop.
I hope everyone has a great day ?.
These results show me that the bigger the animal is, the longer its length of pregnancy is. For example, a mouse (the smallest animal on the table) has the shortest length of pregnancy of 21 days. However, an elephant, (the largest animal on the table) has the longest length of pregnancy of 645 days.
Hello Wanda,
It’s so wonderful to see you commenting on the Blogs. I hope you are keeping well and I look forward to seeing to some of your comments for the other subjects too.
Thank you for your interpretation of the data. Well done. Do you agree with Mathilde’s point about the lion?
These results show me that the bigger the animal is, the longer its length of pregnancy is. For example, a mouse (the smallest animal on the table) has the shortest length of pregnancy of 21 days. However, an elephant, (the largest animal on the table) has the longest length of pregnancy of 645 days.
🙂 Wanda(:
Hello Everyone!!
I agree was Wanda because if you can see on the chart it says that the mouse is only 21 days and the Elephant is 645 days. It also said that a squirrel was about 30 days only ????
Hello Elena,
Thanks you for looking at what your peers have written as well as the information on the Blogs. It’s good to share ideas as we would do when we discuss ideas in class.
Hello everyone! I hope that you have had a great day so far! I really enjoyed today’s science ? ? task!
Here is what I found out using the information that I was given…
It takes Elephants 624 more days to be pregnant than for mouses. Meaning that they are are pregnant for about 22 months, however, mice are only pregnant for at least 1 month.
Elephants are highly sociable mammals with a high level of intelligence similar to that of great apes and dolphins.
They have the longest-known gestational period of any animal, lasting up to 680 days.
Elephants are born with an advanced level of brain development, which they use to recognise the complex social structure of the herd and to feed themselves with their dextrous trunks.
?DID YOU KNOW?
A quirk of biology allows the unborn calf to develop in the womb for almost two years, giving it the brain power it needs to survive from birth.
I found this fact whilst I was researching and I wanted to share it with you..
Squirrels are similar to mice..
A couple of days ago a thought came to my mind ‘Maybe mice are so small because they don’t stay in the womb for a long time…’
Yes, I do agree, big animals stay in the womb for a longer time than smaller animals.
_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^_…^
ANIMALS IN ORDER BASED ON THE TIME IN THE WOMB…
Mouse ?
Squirrel ?
Cat ?
Lion ?
(HUMANS)
Camel ?
Rhinoceros ?
Elephant ?
I hope that you have learnt something new.
Well done for researching some extra information about this. Very interesting!
Hi everyone,
The results show me that the bigger the animal, the longer the pregnancy. The reverse also applies – the smaller the animal, the shorter pregnancy.
EXTENSION WORK:
I have done the challenge however on the bar chart, the elephant was pregnant for so many days it did not fit as the y-axis only goes up to 500 days and the elephant is pregnant for 624 days.
Hope to see you soon,
Regan
Well done Regan. If you have time, maybe you could make another bar graph with a better scale on the y-axis so that the elephant can fit on properly!
Hi everyone.
These results show me that humans don’t have the most days of pregnancy. The elephant has the longest pregnancy of 645 days, while the mouse the smallest animal out of all of them, only has 21 days. After the mouse is the squirrel with 30 days, then the cat with 64 days. After them it’s the lion with 108 days, than the human 266 days. Finally, it’s the camel [370 days], then rhinoceros [450 days] and then the largest land animal still alive is the African elephant.
EXTENSION:
I think in general the bigger the animal, the more days of pregnancy it has 21 days but the squirrel has 30 days and it’s larger. But in the table it says the lion has 108 days and a human has 266 days even though humans are smaller than lions. I also think that they have shorter pregnancy maybe because the lion cub is smaller then when the human bay is born so that’s why the lions have shorter pregnancy.
Hello everyone
I don’t think the bigger the animal the longer it takes to give birth I think it takes longer or shorter depending on the size of the baby when its going to be born. It would take longer if the baby is going to be bigger like a giraffe which takes 15 months but for a mouse it takes 21 days. The mouse is smaller and the baby is tiny which is why it takes the least days of pregnancy. I think this because if the baby is bigger it is going to take longer for it to develop fully but if its smaller it develops more quickly. :3
A different way of thinking about it Claudia, focussing on the size of the baby rather than the size of the mother. Very interesting!
Hi everyone I hope you like my conclusion.
I found out that a Cat and a Dog are pregnant for the same amount of days (60). A Mouse and a Rat are also pregnant for the same amount of days (20). A squirrel and a Rabbit are again pregnant for the same amount of days (30).
The table showed me that the bigger the animal the more days of pregnancy it has and it also showed me that the smaller the animal the shorter the pregnancy it has. For instance an Elephant is pregnant for 650 days and a Mouse is pregnant for 20 days – the difference there is 630 days! Nearly TWO years?! I would definitely not want to be an Elephant!
~Iggy
Hi Everyone, I agree with mostly everyone because it could be like Wanda said but it could also be the climate in which they live in because:
hot/dry: Camels(370), Rhinoceros(450),Elephant(645).
temperate: Lions(108), Humans(266)
cold: Mouse(21), Squirrel(30), Cat (64)
As you can see, animals who live in hot/dry places take the longest to develop than ones who live in colder places. Another reason is that the largest animal in each of these groups takes more time to develop than the smaller ones.
Hello everyone! I hope you are all keeping okay!
I found out that how big the animal is, the longer pregnancy is. An elephants pregnancy is 624 more days than a mouse!!!
Hey everyone! I hope you are all keeping okay!
*Did you know that an elephants pregnancy is 624 more days than a rat? That is because an elephants pregnancy are: 645 days and a mouse’ is: 21 days! 😀
*A humans pregnancy is not the longest actually! It is the 4th longest days of pregnancy!! 😀
*All of the pregnancy days are down below:
Mouse: 21 days
Squirrel: 30 days
Cat: 64 days
Lion: 108 days
Human: 266 days
Camel: 370 days
Rhinoceros: 450 days
Elephant: 645 days
Thank you for reading this and I hope you have an AMAZING day!!
Bye!! 😀 😀 😀 😀 😀 😀 😀 😀 😀 😀 😀
.+*Kayla*+.
Hi everyone, I think the bigger the animal at birth then the longer the gestation period. So a baby mouse is tiny and the gestation period will be very short but a baby giraffe is quite big so they gestation period would be much bigger.
Good morning Mrs Avdiu, here is my conclusion for yesterday’s science? task.
From the information above, I have concluded that mice? take the shortest amount of time to develop (21 days) and elephants? take the longest (645 days). The thing that I was surprised to find, was that humans have a longer gestation period than lions?. I think that this is not because humans are cleverer, live in colder places or are bigger, but because they have more complex bodies and are bigger at birth, humans and elephants? also have heavier brains ? at birth than lions? and mice?.
Thank you Zavan for your very thoughtful and detailed conclusions.
Good morning Mrs Avdiu, here is my conclusion for yesterday’s science?? task.
From the information above, I have concluded that mice? take the shortest amount of time to develop (21 days) and elephants? take the longest (645 days). The thing that I was surprised to find, was that humans have a longer gestation period than lions?. I think that this is not because humans are cleverer, live in colder places or are bigger, but because they have more complex bodies and are bigger at birth, humans and elephants? also have heavier brains ? at birth than lions? and mice?.
Super conclusions. I loved your use of emojis 🙂 I was also surprised to learn that too!