Look what you started Navneet? It is quite a bit of fun through exploration of 'doctrine of signatures' of sorts. If we think like the plant, mineral, animal or entity we can come up with so many insights into behavior, sensations, interactions, relationships, complementary and opposing actions and more.
Don't forget that those animals such as lion and dog also have very endearing qualities of protecting their family members and living in social groups.
except that the male lions are often wanderers who are kicked out during raising the young and only meet females for mating. Maternal instinct great, paternal lousy. I was going from their primary behaviour when hunting or otherwise getting food and appearance.
Actually, "humanity has much of the snake in him". (Kent on Lachesis) That implies that the snakes are indeed jealous. Not even legs to stand on, nor ears to hear with, the snake is so envious, it is the most un-eviable position to be in. Jealousy leads to venomous attacks, evidenced in the poisonous snakes.
We also say 'eat like a wolf or a pig, A loanshark, courage like a lion, the jaguar never changes its spots, lazy like a sloth, that person is a corocodile' and so on.