If love were an animal
I choose Jellyfish for love.
This animal is boneless, and that's exactly Love. It doesn't have a solid structure because it is different according to the experience you get, the two persons loving each other, and conditions too. That's why a lot of people may answer this question choosing an animal that is related to their experience with love.
Jellyfish are beautiful when they are in water and look pure. Love, too, can be so nice and so amazing and bring a lot of good and happy emotions.
Also, Jellyfish sting, and it is the same with love. It can hurt and even can hurt badly.
Jellyfish are full of life and beauty in the water. Love, too, when it is surrounded by unfavorable conditions and the wrong context or atmosphere, it is not lively and dies slowly.
Jellyfish swim deep in the ocean, some kinds go deeper than others, and love faces the deep unknown too.
And while doing that, Jellyfish encounter troubles and threats. Love does too. It may face a lot of difficulties.
Jellyfish come in big swarms too, showing solidarity and being in a group and a family. In the same way, love favorites solidarity and being together, whether it is for the concept of two persons loving each other, or people, in general, loving each other and being one. Because love is not only between couples.