Tortoises are famed for their longevity. The oldest living land animal is a 190-year-old Seychelles giant tortoise (Aldabrachelys gigantea hololissa) named Jonathan. The tortoise lives on the island of St. Helena in the South Atlantic Ocean after having been brought there by people from the Se...
We here report a novel family of cystine knot peptides from nemertean worms, with potent activity on voltage-gated sodium channels. These toxins, named the α-nemertides, were discovered in the epidermal mucus of Lineus longissimus, the ‘bootlace worm’ known as the longest animal on earth....
Groups of genes divided by the relative position of the longest intron in the 1stversus 2ndor 3rdtertile differ in the representation profile of the absolute positions of these introns. For all tested species, in the 1sttertile group, the percentage of the intron with the absolute position No....