Retraction is a compulsory literary genre: it is only written by one who has no other choice, and it does not pursue fame. Except for a few media cases, retractions go unnoticed by the public. What makes for hot news?
Biparental care is observed in less than 10 % of mammals and are often associated to monogamous relationships or immature offspring.
When we talk about species without sexual dimorphism, we should complete the sentence with a small note: species without a sort of sexual dimorphism that we can detect.
