Anas Zoology

Fossil of  Alethopteris serlii Alethopteris serlii: Alethopteris   serlii  is a extinct seed producing plant. It is an extinct plant of gymnosperms. It belongs to the Carboniferous period (around 360 to 300 million years ago). They went extinct during the Cretaceous period. Alethopteris had compound pinnate fronds, consisting of thick, strongly veined leaflets. References: Image source ( Fossil of  Alethopteris serlii) :  https://www.kgg.org.uk/alethopterish.html

(Image Source:  https://en.wikipedia.org/wiki/Peafowl ) First let us understand the terms peacock, peahen and peafowl. Peacock and Peahen are collectively known as peafowl. This means peafowl can be used to address either a male or a female.  Peacock is the male peafowl. Peahen is the female peafowl. There are 3 types of Peafowls in the world and they are: Indian Peafowl Green Peafowl  Congo Peafowl (Image Source:  https://www.animalspot.net/peafowl ) 1) Indian Peafowl: It is a peafowl species native to the Indian Subcontinent. Sexual dimorphism is seen. Peacocks are brightly colored while peahens have a dull color. Peacocks are iridescent bluish-green in color while peahens are dull brownish-green in color. The most remarkable difference between the two is the tail feathers. Peacocks have long tail feathers while tail feathers of peahens are short.  Indian Peacock (Image Source:  https://en.wikipedia.org/wiki/Indian_peafowl#/media/File:Peacock,_East_Park,_...

  What is Mutualism ? It is a positive relationship between two individuals of species where both the species are benefited. Examples of Mutualism: Pollination by Animals: animals like bees. butterflies and moths derive their food from plants and brings about the pollination of plants. Ants feed on honeydew produced as a waste product by aphids and in return offer them protection. Oxpecker feeds on ticks and blood-sucking flies from the body of large grazing mammals like zebras, buffalos, rhinos etc. This helps the large mammals from getting infected by such parasites and in return oxpecker's gets an easy meal. Oxpecker and Buffalo (Image taken from: https://www.youtube.com/watch?v=5MfrsKJailo)