Most early studies of consciousness have focused on human subjects. This is understandable, given that humans are capable of reporting accurately the events they experience through language or by way of other kinds of voluntary response. As researchers turn their attention to other animals, "accurate report" methodologies become increasingly difficult to apply. Alternative strategies for amassi...

Cephalopods are well known for their bioactive secondary metabolites like Ink and very few studies have been carried with respect to bioactivity of their tissues. This study focuses on the antibacterial activity of the methanolic extracts from the body tissues of selected cephalopod species Sepioteuthis lessoniana, Sepia brevimana and Octopus cyaneus against five human pathogens. Gram positive ...

Previous studies have reported that the developmental processes of vertebrate eyes are controlled by four Pax-6 splicing variants, each modulating different downstream genes, whereas those of insect eyes are controlled by duplicated Pax-6 genes. Cephalopods belong to the Protostomes but possess a camera-type eye similar to those in vertebrates. We examined Pax-6 variations in the squid and foun...

Cuttlefish are masters of disguise, rapidly changing colour to blend with their backgrounds. A new study shows that they break camouflage to direct warning messages at certain predators, but only those likely to be dissuaded by visual signals.

Cephalopods are an important component of Southern Ocean food webs but studies analysing their habitat and trophic ecology scarce. Here, we use the Antarctic toothfish Dissostichus mawsoni as a biological sampler Ocean's cephalopods in Ross, Amundsen, D'Urville Seas. Ten cephalopod taxa were identified diet toothfish, with Pareledone turqueti Moroteuthopsis longimana being only species present ...

Cephalopods form important components of marine trophic systems worldwide, including those in the South Pacific. Moroteuthopsis ingens (Onychoteuthidae) is one most abundant deep–sea squids Aotearoa New Zealand region and preyed upon by predators such as sperm whale orange roughy. However, despite many publications on M. ingens’ diet, knowledge its feeding ecology remains limited. In this study...