throat grooves run from the mouth to the belly. Instead of teeth‚ blue whales have 270 to 400 black baleen plates on each side of their mouths. These plates are about forty inches long and twenty-two inches wide. The blue whale has a tiny‚ stubby dorsal fin set far back on its body. It has a 20 foot wide‚ slightly notched‚ triangular flukes‚ which is propelled by an extremely thick tail stock. The flippers on this creature are long and slender‚ and are about one-seventh of the whale’s body length
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inches across. A candidate for close comparison is Antarctilamna‚ whose bones have been discovered in the Antarctic continent rocks. This fish was forty centimeters long‚ and conspicuously shark-like. Its spine was located at the front of a long dorsal fin‚ additionally its teeth that had 2 huge splayed cusps‚ and smaller cusps positioned between them. The era of fishes During the Devonian period the first key radiation of sharks
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Walking (Ambulatory) FishesWalking (Ambulatory) Fishes Fish is any aquatic vertebrate animal that is covered with scales‚ and equipped with two sets of paired fins and several unpaired fins. Most fish are "cold-blooded"‚ or ectothermic‚ allowing their body temperatures to vary as ambient temperatures change. Fish are abundant in most bodies of water. They can be found in nearly all aquatic environments‚ from high mountain streams to the abyssal and even hadal depths of the deepest oceans. At 31900
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Subject: AACB3214 Biodiversity and Ecology Experiment 7 Title: Study of Deuterostomes Aim: 1. To observe the external features of deuterostomes. 2. To study the characteristics of deuterostomes. Materials: 1. Sea urchin 2. Amphioxus 3. Dogfish 4. Caecilian 5. Lizard 6. Microscope Methods: 1. The specimen of sea urchin‚ amphioxus‚ dogfish‚ caecilian and lizard were observed. 2. The external features of specimens observed were drawn. Discussion: The Deuterostomia comprise
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! ! Blackfish ! As a child‚ there was nothing I looked forward to more than our yearly family trip to San Diego. For a child born and raised in the desert‚ the sound of the crashing waves‚ seagulls squawking and the feeling of sand beneath my toes was pure bliss. My love for the ocean did not just cease at the sand‚ but extended to the dolphins that I would see swimming offshore and to everything else that I imagine lived deep in these huge blue waters. I was intrigued with the idea of
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In 2012 Sarah was being abused. Sarah is a 54- year-old captured elephant owned by a well known circus- “ The Ringling Bros and Barnum and Bailey.” This wild life creature that was put into captivity suffered with chronic infections and symptoms of arthritis and yet was forced to keep working. One of many times‚ after performing Sarah collapsed to the ground while being loaded into one of the railroad box cars‚ the circus didn’t examine her or gave her the proper medical procedure.They just forced
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Misconceptions of the Endangered Sharks “Strong jaws‚ teeth-like scales covering the body‚ gills‚ dorsal fins‚ pectoral fins‚ and a powerful tail‚ along with fantastic camouflage…”(Kraus 91)‚ sharks have been able to remain the top predator of the ocean waters for the past 400 millions years. They belong in the family known as the Chondrichthyes which distinguishes them from other of aquatic life in which they have evolved to have special skeletons made up of cartilage and connective tissues. These
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sexes. Dimorphism means two forms. “Sexual dimorphism” is two sexes of a species differ in external appearance or other features. Males and females may differ in size‚ color‚ shape‚ the development of appendages (such as horns‚ teeth‚ feathers‚ or fins)‚ and also in scent or sound production. Species in which male and females are identical in appearance or other features are said to be “monomorphic.” There are different types of dimorphic traits found in marine mammals and explains some of the reasons
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in which these animals are cut up for their fins) Body: I. When sharks are caught commercially‚ their fins are cut off for the purpose of shark fin soup. a. After cutting the fin off‚ commercial fishermen toss the STILL LIVING shark back into ocean to die one of three gruesome deaths. i. Sharks cannot survive without constant flow of water through their gills‚ so some of these finless sharks drown. ii. Next‚ sharks cannot swim without a dorsal fin‚ which means they cannot hunt food to survive
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WHY I THINK SEAWORLD SHOULD CLOSE DOWN Seaworld may seem like a great‚happy‚ and fun place. When you actually get to go and interact with the Sea animals you might get a chance to swim with the dolphins or touch the small sharks and stingray. The first Seaworld was called Sealand. The aquarium opened in 1969‚ housing an orca named Haida which had been captured in 1968‚ then they started to buy Orcas from other countries and have the shipped to Sealand. The first dozen Orcas dies on the way to Sealand
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