T-shaped uterus T-shaped uterus A t-shaped uterus is a type of uterine malformation wherein the uterus is shaped resembling the letter T. This is typically observed in DES-exposed women. It is recognised in the ESHRE/ESGE classification, and is associated with failed implantation, increased risk of ectopic pregnancy, miscarriage and preterm delivery. There is a surgical procedure to correct the malformation. The t-shaped malformation is commonly associated with in-utero exposure (the so-called "DES-daughters") to DES, although it is also presented congenitally. Women are often diagnosed with this condition after several failed pregnancies, proceeded by exploratory diagnostic procedures, such as magnetic resonance, sonography, and
Tool use by sea otters has significantly larger gluteus muscles than other mustelids. Sea otter forelimbs are small and not used in swimming. Forelimb structure, particularly musculature and skeletal anatomy, are potentially adapted for, "tactile sensitivity and tool use associated with detection, handling, and consumption of prey". The lower incisors of sea otters protrude and are shaped like spades, a shape which may facilitate their ability to scoop food out of shellfish. During consumption of sea urchins, otters use a tool or their paws to crack open the sea urchins and scoop out the gonads and viscera with the lower incisors (12). The canines are