Ecology classes with PFC continued with the latest session focussing on reptiles. The children were taken to the Snake Park at Guindy where they saw snakes, played games, and generally had a wonderful educative session.
Here's a recap of the class by Shahana Shameer, Grade 6 who has blogged this:
Siamese
crocodile are of course found in the Siamese River and north east Asia.
Here's a recap of the class by Shahana Shameer, Grade 6 who has blogged this:
Ecology Class 5
On
this day we learned about snakes and some other reptiles because we went to the Snake Sark. (What else would we learn in that park other than about reptiles and
snakes?)
Alright,
so first we lets get started with our 4 big snakes in India. So the 4 big
snakes are:
1. Spectacled
Cobra
2. Common
Krait
3. Saw Scale Viper
4. Russel’s
Viper
Do you know why the Spectacled Cobra is actually called Spectacled
Cobra? Because it has 2 dots on its back and they look like specs.
Spectacled; Specs, get it? Okay lets move on.
And if you are wondering why are these called the 4 big
snakes? Why are they known as 4 big snakes? They all ARE dangerous but the
reason why is because they are responsible for causing a great number of significant
deaths in India. Of the big 4, the common krait is more responsible for more
deaths and then Russel’s Viper followed by Saw Scaled Viper and at last, the Indian Cobra.
Also do you know why it is called the Saw Scaled Viper?
Because when there is a predator, the Saw Scale Viper rubs it’s tail on the ground
to scare it away and it makes a cutting saw sound.
The Russel’s Viper is
found throughout India and of course it is venomous. It grows to about 3 ½ ft. It
feeds on rodents and gives births to 6-63 young!
The Common Krait feeds on small animals and grows upto 3ft.
Alright, so there are
4 species of Cobra in India.
- Spectacled Cobra
- Monocled Cobra
- King Cobra
- Andaman Cobra
I already told you about the
Spectacled Cobra and so now I will tell you about the Monocled Cobra. And if
you know the word Mono means 1. And the Monocled Cobra has only 1 dot on it back
unlike the Spectacled Cobra, it has 2.
The King Cobra is special and also
known as the Indian Cobra. It is the only snake that eats other snakes. And
sometimes even it’s own species, The King Cobras!
When a King Cobra lays eggs, it keeps
them in a nest to incubate unlike the other snakes they cover it with
themselves. It takes 2 months
for the babies to hatch. But the King Cobra leaves the nest before a month,
why. Because it doesn’t want to eat it’s own babies.
Now what is the difference between
poison and venom? Would you call a snake
poisonous or venomous? Why?
1rst lets know the difference between poison
and venom. Venom will only work when it reaches our blood so it has to
be injected or somehow reach your blood circulation. Now poison has to go to
your digestive system. And if poison goes to your blood, nothing happens and if
venom goes to your digestive system nothing will happen. (unless you have some
medical issues, it may react) So you can drink venom!
I will tell you about a snake that you
might have something in common with it. And not a lot of people have this.
Albino snakes and Albinism. Albinism is a rare phenomenon where body’s melanin
pigment gets lacked or below normal in their DNA. People people might have it.
You know when people have dark colors and they may have patches of white or
pick on their skin. Just like that an albino snake is total white so it makes it
hard for itself to camouflage. And also they are non venomous.
How do non venomous snakes catch
prey? They just gulp it down. Literally! Their body stretches like elastic. When
we try to stretch are mouth it hurts because we have a specific bone and snakes don’t. And the body gets
bigger and fatter as it gulps down stuff.
Now I am going to tell you about some
snakes you may have not heard of.
Wolf snake
Ø Nocturnal
Ø Feeds
on geckos and skunks
Ø Lays
5-7 eggs in the month of December to January
Rat Snakes:
v They
act and look like Spectacled Cobra because it will make it’s predator scare
away. And Spectacled Cobra is one of the big 4.
v Non
venomous
v Grows
to about 6 ½ ft.
v Lays
8-22 eggs
v Feeds
on rats, frogs and lizards
Australian Green Python
§ Non
venomous
§ Kills
prey
§ Tree
dwelling
§ Found
in tropical evergreen forests
Common Vine Snake
·
Found in India except northwest side
·
Grows to about 3 ½ ft
·
Feeds on lizards and small animals
·
Gives upto 23 young ones
·
Mildly venomous
Now
I will take a break from snakes and talk about other reptiles.
Crocodilians:
- Crocodiles, Alligators and Caimans together are known as crocodilians.
- Crocodilians are represented by 23 species
Gharials:
- Are a species of crocodile.
- Size upto 23 feet.
- Snout tip for males and beak like structure.
- Feeds mainly on fish.
- Lays 7-60 eggs
- Critically endangered species
- Hind leg is long.
- Hind=back Fore=front
Marsh
crocodile
- Throughout India
- Grows about 13 feet
- Feeds mainly on fishes, frogs, birds, snakes and mammals
- Lay 12 clutches, each about 10-50. In a year.
Nile
crocodile:
- Found in rivers of lakes and swamps of Madagascar
- And can feed on large and small animals.
- Man killer
Indian
Flapshell Turtle
- Fresh waters of Inida and other parts of South Asia.
- Feeds on small fishes and tadpoles.
Indian
Black Turtle
- Found in freshwaters of the Indian peninsula and northern eastern India.
- Feeds on veggies and animal matter.
- Grinding teeth.
Facts.
- Crocodiles can grow teeth until they die.
- Crocodiles have little tears that buterflies drink.
- Frogs can jump to 30 ft. (13-15 times t’s own size)
- Some frogs are able to freeze as solid and are able to survive.
No comments:
Post a Comment