Fig. 2From: Linoleic acid as corpse recognition signal in a social aphidFatty acid profiles on the body surface of T. styraci. (a) Live old adults. (b) Live old soldiers. (c) Dead old adults 3 days or longer after freeze-killing. (d). Dead old soldiers 3 to 7 days after freeze-killing. Retention times are expressed in minutes. TIC: total ion currentBack to article page