A new species of pycnogonid collected by the Chinese research vessel R/V Dayangyihao during cruises to the Southwest Indian Ridge in 2008 and 2009 is recorded. The new species, Austrodecus bamberi, is placed into the tristanense-section by the characters of 4-articled ovigers and present auxiliary claws and is distinguished from other species in this section by the number and length of tubercle...

In a sample taken from Apipucos Reservoir (Recife, PE, Brazil) for taxonomic study, a high percentage (40%) was found of cladoceran Ilyocryptus spinifer individuals with morphological abnormalities on their postabdomen. There was not a fixed pattern of the malformations, which varied in gravity, and could affect the postanal spines or terminal claws. The postabdominal abnormalities are describe...

If you didn’t know the topic, but overheard a conversation in which rescuing a baby wallaby from its mother’s pouch’ was mentioned, you would probably think of other units of meaning that were expected features such as the long tail of the mother, her claws and pointed ears. Our units of meaning for a topic are linked together into networks. When some units are stimulated by information we dete...

A unique, symmetrical onychodystrophy is described in 18 dogs. A rather sudden onset of onychomadesis is followed by chronic onychodystrophy affecting all claws. Pain and lameness are recognized in half of the patients, but the dogs are healthy otherwise. Histopathologically, this disorder is characterized by hydropic and lichenoid interface dermatitis. Nine dogs were treated with a commercial,...

Mercury (Hg) is a global environmental contaminant that affects ecosystems. It known to biomagnify through food webs and bioaccumulate especially in the tissues of top predators. Large-scale comparisons between taxa geographic areas are needed reveal critical trends related Hg contamination its deleterious effects on wildlife. Yet, large variety (keratinized tissues, internal organs, blood) as ...

A variety of aquatic vertebrates, including teleost and non-teleost fish, amphibians, and monotreme mammals, are sensitive to low-frequency electric signals with thresholds of low nanovolts per centimeter to high microvolts per centimeter, have specialized detectors for these signals, and use electroreception to locate food or orient in their environment (1–9). Although invertebrates would simi...