Manatee emoji?

[James Kass]

http://patch.com/florida/southtampa/petition-drive-aims-raise-manatee-awareness-adorable-way

If enough people sign the petition, will Unicode add a manatee emoji?
And, how about wolverines and lemmings?  Are any petitions underway
for them?  How many signatures on a petition would be needed before
Unicode would consider adding a non-existent character to the
repertoire?

Best regards,

James Kass