“…This behaviour, however, is present in all arachnid orders, except for the Palpigradi whose reproductive behaviour is unknown (Weygoldt, 1969(Weygoldt, , 1972(Weygoldt, , 2000Pittard & Mitchell, 1972;Brach, 1975;Foelix, 1982;Polis, 1990;Punzo, 1998;Machado & Raimundo, 2001). Particularly in the order Opiliones, there is a wide diversity of forms of parental activities, varying in complexity and duration and ranging from egg burying to long associations between the parent and the offspring (review in Machado & Raimundo, 2001).…”