North Atlantic Right Whale (Eubalaena glacialis)

Scale illustration of an average North Atlantic Right Whale with dimensions length compared to a human and sea cows

The North Atlantic right whales are among the most endangered species in the family Balaenidae. They are slow surface-skimmers, docile, and prefer coastal waters. They live in areas of the western north Atlantic ocean beside being also called black right whale or northern whale. These mammals lack a dorsal fin, have pectoral flippers that are short and paddle-like and long arching mouths above the eyes with stocky black bodies and white blotches on their undersides. The North Atlantic right whale makes a distinctive V-shaped blow and can be identified by the shape, position, and size of their callosities, which are unique to each whale.

North Atlantic Right Whales have a total length between 43’-52’ (13.1-15.8 m), body height of 9.2’-11.1’ (2.8-3.4 m), and width of 14.8’-18’ (4.5-5.5 m). The typical weight of the North Atlantic Right Whale is in the range of 44-75 tons (40-68 metric tons). North Atlantic Right Whale have lifespans between 50-70 years.

Pair of elevation illustrations of the North Atlantic Right Whale seen from the side and front

How many blowholes does a Baleen Whale have?

The Baleen Whale has 2 blowholes that serve as its nostrils and are situated at the top of its head. The blows of the Baleen Whale are considered to be bushier than those created by toothed whales who typically only have a single blowhole. Baleen Whales can also expand their throat to gulp large amounts of seawater.

What does a Baleen Whale eat?

The Baleen Whale typically eats krill, fish, zooplankton, phytoplankton, and algae. The Baleen Whale feeds by filtering or straining food from the water they consume. The Baleen Whale has baleen plates which they use to push water out while trapping their food inside for them to swallow.

How did Baleen Whales evolve?

It is believed that Baleen Whales evolved from a common ancestor who lived more than 23 to 25 million years ago. Unfortunately, the common ancestor has not been discovered, but probably lived within the Oligocene period. It is also believed that the earliest ancestor of the toothed whale lived during this time.

How many blowholes does a Baleen Whale have?

What does a Baleen Whale eat?

How did Baleen Whales evolve?

What are the three groups of organisms that are considered cetaceans?

The 3 groups of organisms that are considered cetaceans are whales, dolphins and porpoises. The 3 groups are made of 89 species in total. The cetacean order is further divided into 2 groups: toothed whales (odontocetes) that includes over 73 species and baleen whales (mysticetes) that is made up of 11 species.

What do cetaceans eat?

All species of cetaceans are carnivores. A cetaceans’ diet depends on the species, but most cetaceans feed on mostly fish, and marine invertebrates. Some like the killer whale, feed on large mammals and birds like penguins or seals. Baleen whales usually eat mollusks, copepods, krill, small fish, and squid.

Where do cetaceans live?

Cetaceans can be found in all climates and all oceans of the world ranging from the coldest waters to tropical waters. Some species live only in specific areas, like the southern right whale dolphin and hourglass dolphin that only inhabit the Antarctic Ocean. Some species of whales migrate between seasonal habitats like the gray whale.

What are the three groups of organisms that are considered cetaceans?

What do cetaceans eat?

Where do cetaceans live?

When did mammals first appear?

Mammals first appeared during the Triassic period which was about 252 million to 201 million years ago and were members of the reptilian order Therapsida. This order had a subclass, Synapsida which are sometimes referred to as mammal-like reptiles. They were part of the Carboniferous period and are considered one of the earliest reptilian groups.

Which mammal species lay eggs?

The only 2 mammal species that lay eggs are the duck-billed platypus and the echidna, also known as the spiny anteater. The reasons these 2 mammals still lay eggs may be due to their distant ancestors as well as other primitive traits like their reptile-like shoulders.

What are the most common mammal species?

The most common mammal species are humans as it is the most numerous species of mammal on Earth. As of 2022, the human population reached 7.9 billion. Human beings are the only species that are close to exceeding the number of members of the brown rat and the house mouse.

When did mammals first appear?

Which mammal species lay eggs?

What are the most common mammal species?

What do marine animals need to survive?

Factors that marine animals need to survive include bioluminescence which is when animals make their own light and helps them communicate and scare predators. Constant light, pressure, temperature, and food are factors needed to remain stable and help marine animals evolve to survive. Marine animals that live within the deep sea can withstand the cold.

Why do we need to protect marine life?

Humans need to protect marine life because our actions and lifestyles have a direct impact on the ocean. We need to protect marine life and provide a safe and healthy environment that is not impacted by overfishing, climate change, pollution, habitat destruction, invasive species, and other forms of human exploitation.

What is the most common animal in the ocean?

The most common animal in the ocean is the bristlemouth which is a vertebrate, an animal with a backbone. The bristlemouth is a tiny fish that can glow in the dark and has fangs that resemble needles. Bristlemouths are part of the 1 million species of animals that live in the ocean.

What do marine animals need to survive?

Why do we need to protect marine life?

What is the most common animal in the ocean?

Details

Under Development

Height:

9.2’-11.1’ | 2.8-3.4 m

Width:

14.8’-18’ | 4.5-5.5 m

Depth:

Length:

43’-52’ | 13.1-15.8 m

Weight:

44-75 tons | 40-68 metric tons

Area:

Scientific Name:

Eubalaena glacialis

Lifespan:

50-70 years

Properties

Drawings include: 
North Atlantic Right Whale side elevation, front, top

Links

Wikipedia - North Atlantic Right Whale

Wikipedia - Baleen Whale

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