A scientific team has found the first evidence of parental care in Tanaidaceans, dating back to more than 105 million years, according to a new study published in the journal Scientific Reports, from Nature group. These new findings are based on the study of three small crustaceans from different species of the Cretaceous –Alavatanais carabe, Alavatanais margulisae and Daenerytanais maieuticus- preserved in amber pieces from the sites in Peñacerrada (Álava, Spain) and La Buzinie (Charente, France), reference models in the study of fossil records in amber with bioinclusions of the Mesozoic in Europe.