If it is a heart attack, you're more likely to experience chest heaviness with constriction. You may experience pain in the center of your chest accompaning by tingling or pain in the shoulder, arm, jaw, or back. You may also feel anxiety, shortness of breath, nausea, wheezing, coughing, and possible vomiting.ind out here the causes and what to do if this condition occurs. Heaviness in chest can definitely make you feel worried because it's often one of many signs of a heart attack. In a heart attack, however the pressure seems to grow big, restricting breathing and causing some pain in the shoulder as well.
Penguin Endangered. It is no secret that for almost all of the species of penguins out there, the numbers are less than they were just a few decades ago. There are many reasons for this including hunting them for oil, taking their eggs, destroying their natural environment, the weather, and a lack of food supply.
Narwhal Endangerment Level. Narwhals have been listed as âNearly Threatenedâ since 2008. Very few laws have been proposed in attempts to protect this interesting species. In an effort to support conservation, the European Union established an import ban on tusks. Narwhals are becoming extinct for three main reasons.housands of years of evolution have prepared an Arctic species like the narwhal for life on and around the sea ice. Because of climate change, this ice cover has dramatically decreased in both extent and thickness, at a rate far too quick for a species to adapt.