Dolphins can imitate a variety of sounds from their environment almost indistinguishably from the original, including rusty doors, water, bells, and bird calls. They are also able to mimic human speech and laughter. Sharks have cartilaginous skeletons unlike bony fish and are divided into 8 groups based on body shape, head features, gill openings and other characteristics. The largest prehistoric shark, Megalodon, reached over 12 meters long. Grampus whales, related to sperm whales, have males up to 9.5 meters long and females up to 7 meters. They are black with a white belly and males have a large dorsal fin. Plankton consists of tiny plant and animal

1. ANIMALS IN THE WATER
Rigas ostvalda secondary school
Kristina Berlina 5.b

2. Dolphin
Dolphins - excellent. They not
only learn when listening to
sounds, but they themselves
imitate them. Rusty creaking
doors, water gurgling, bell
ringing, chirping of birds talented dolphins can represent
one or other noise so that with
eyes closed it can not be
distinguished from the present!
They can even copy human
speech or laughter. If the record
is onomatopoeia on film and
then listen in slow motion,
similar to the human voice
clearly appear.

3. Shark
Sharks, the so-called oceanic
cartilaginous fish , unlike bony fish
have a cartilaginous skeleton as a
sturgeon . Sharks are subdivided into
eight major groups - the shape of the
body, the head, the number of gill
openings , the position of the
mouth, the presence of anal fins and
spines. These are divided into eight
groups of 34 families and more than
350 species. Progenitor shark Megalodon ancient fish - was more
than 12 meters in length, had a huge
mouth and powerful teeth . Sharks
have a complex system of mating ,
feeding and social interaction , and if
escape from mythology , most
sharks are not dangerous to
humans. Major countries that
consume shark meat - Japan and the
United States .

4. Grampus
Grampus with sperm whales
are baleen whales. Males
reach 9.5 meters in length and
weight up to 8 tons, females
are smaller - up to 7 meters in
length and weighing 4 tons.
Animals have a spectacular
appearance - black body with
a white belly and a spot at the
base of the vertical dorsal fin
that males can reach 1.8
meters. pectoral

5. Plankton
Plankton is the set billion
sedentary small plant and
animal organisms that drift
freely in the water column
and can not, in contrast to
nekton, resist the flow of
water. By plankton include
bacteria living in the water,
algae, protozoa, some
coelenterates, molluscs,
crustaceans, fish eggs and
larvae, larvae of various
invertebrates.

6. Thank you for your attention!