Eastern Long-beaked Echidna Facts, Size, Eggs and Population

Estimated reading time: 15 minutes

Uncover interesting Eastern long-beaked echidna facts in this extensive article about Zaglossus bartoni is one of the planet’s most extraordinary mammals—a living relic from the dawn of mammalian evolution. These curious monotremes are found only in the rugged, remote mountains of New Guinea. Adult Eastern long-beaked echidna size is around 5 to 10 kilograms and 60 to 100 centimetres in length. Their bodies are covered in coarse fur and protective spines and their elongated tube-like beak houses electro-receptors that help them detect earthworms and insects underground. Because they are nocturnal and shy, they spend much of the day hidden in burrows or dense undergrowth. Zaglossus bartoni is genetically and physically unlike any other animal alive today.

However, their forest home is shrinking fast. Palm oil, timber, and gold mining are destroying the montane forests they depend on, while hunting for bushmeat continues across parts of New Guinea. Read on to learn how you can help these timid and beautiful mammals every time you shop and support indigenous-led conservation and fight for their survival.

Eastern Long-beaked Echidna Zaglossus bartoni

Status: Vulnerable

Location: Endemic to the highlands of Papua New Guinea.

Appearance and Behaviour

The Eastern long-beaked echidna looks like something out of a prehistoric dream. These echidnas weigh between 5 and 9 kg and are covered in coarse fur interspersed with hedgehog-like spines that offer protection from predators. Their most distinctive feature is their elongated, tube-like beak, which is a marvel of evolutionary adaptation.

Unlike most mammals, they lack teeth and a conventional jaw. Instead, their beaks are lined with electro-receptors, allowing them to detect the faintest electrical signals from underground prey. This unique “beak” functions as a tool for slurping up earthworms and insects, much like a child sucking up spaghetti.

These shy creatures are primarily nocturnal, spending their days hidden in burrows or dense undergrowth. A remarkable trait observed is their limb preference during digging activities, with some individuals demonstrating clear “handedness” (Limb Preferences in Monotremes, 2015).

Their gait and behaviour further highlight their primitive charm. With a shuffling, deliberate walk, they use powerful claws to dig through soil and leaf litter. Despite their armour-like exterior and prehistoric lineage, these echidnas are docile and shy, avoiding confrontation whenever possible. Each movement and adaptation offers a glimpse into a time when mammals first emerged, making them not just a species, but a living connection to the evolutionary history of life on Earth.

Threats

IUCN Status: Vulnerable

Palm oil, timber and gold mining deforestation

The destruction of montane forests due to timber deforestation, palm oil monoculture, and gold mining has significantly reduced the Eastern long-beaked echidna’s habitat

Habitat fragmentation from human activities isolates populations, reducing genetic diversity and limiting their ability to adapt to environmental changes (IUCN Red List, 2021).

Hunting pressures

Zaglossus bartoni are heavily hunted for bushmeat. Tragically, hunting even happens in places where it’s prohibited. This poses a critical threat to their survival (IUCN Red List, 2021).

Across New Guinea, more than 800 tribal cultures rely on hunting for protein, with echidnas often targeted as a prized food source (Mongabay, 2015).

Limited research into their population trends complicates conservation efforts, highlighting the need for greater scientific focus on this species (Mongabay, 2015).

Diet

The Eastern long-beaked echidna is insectivorous, with a particular fondness for earthworms. They use their specialised snout and long, sticky tongue to extract prey from soil and rotting logs. This foraging behaviour is an essential part of their ecological role, as it contributes to soil aeration and nutrient cycling (Academic OUP, 2009).

Reproduction and Mating

As a monotreme, the Eastern long-beaked echidna produces eggs rather than giving birth to live young. Females lay a single leathery egg, which they incubate in a pouch for approximately 10 days. Once hatched, the puggle remains in the pouch for up to two months, feeding on milk secreted from specialised mammary glands (IUCN Red List, 2016).

Geographic Range

The Eastern long-beaked echidna is endemic to the montane forests of Papua New Guinea, thriving at elevations between 2,000 and 3,000 metres. Zaglossus bartoni range is limited to remote, forested highlands, with populations of the monotremes scattered across the island (AP Science Foundation, 2009).

FAQ

What is the Eastern long-beaked echidna?

The Eastern long-beaked echidna (Zaglossus bartoni) is one of the most unique mammals on Earth. As egg-laying monotremes, they are part of an ancient lineage that has survived for millions of years, which separates them from all other mammals except for platypus and other echidnas. Endemic to Papua New Guinea, Zaglossus bartoni are known for their elongated snout and nocturnal habits (Mongabay, 2015).

Why are Eastern long-beaked echidna classed as Vulnerable?

Primary threats to these echidna include habitat destruction from palm oil and timber deforestation and mining, as well as hunting for bushmeat. Despite legal protections, enforcement is weak, and their populations are in decline.

What does the Eastern long-beaked echidna eat?

The Eastern long-beaked echidna mostly eats earthworms and other soil-dwelling invertebrates. They use a long sticky tongue and a specialised beak to probe soil and rotting logs for prey. Moreover, this feeding method also helps aerate soil and recycle nutrients in the forest floor. Thus they are important seed dispersers in Papua New Guinea.

How does the Eastern long-beaked echidna reproduce?

Female Zaglossus bartoni lay a single egg rather than giving birth to live young. After roughly 10 days in a pouch, the egg hatches and the puggle stays with the mother for several weeks. During that time, the young feeds on milk secreted from specialised mammary glands.

What do Eastern long-beaked echidna eggs look like?

The Eastern long-beaked echidna lays a single small, leathery egg. Echidna eggs are roughly marble-sized. Young hatch after about 10 days inside the mother’s pouch. The baby, called a puggle, is tiny and vulnerable. Additionally, newborn puggles depend on their mothers for milk and warmth until they grow protective spines.

Where is the Eastern long-beaked echidna population found?

These elusive ground-dwelling monotremes live montane forests of Papua New Guinea at elevations between 2,000 and 3,000 metres. However, populations of eastern long-beaked echidna are increasingly threatened by palm oil and mining deforestation.

No precise current population estimate exists for the Eastern long-beaked echidna. Researchers describe them as sparsely distributed throughout much of their range. Furthemore, some studies suggests around 10,000 mature individuals may remain, but this figure is uncertain and likely falling because of hunting and palm oil-related ecocide.

What is the estimated Eastern long-beaked echidna size?

The Eastern long-beaked echidnas are the largest living monotreme. Adults usually weigh about 5 to 10 kilograms and measure roughly 60 to 100 centimetres in length. Females are often slightly larger than males. Furthermore, their bulky body shape helps them move through steep, wet montane terrain.

Take Action!

Protect the Eastern long-beaked echidna by advocating for habitat preservation and supporting indigenous-led conservation efforts. Use your purchasing power to demand palm oil free and vegan instead! #BoycottPalmOil #Boycott4Wildlife

Support the conservation of this species

This animal has no protections in place. Read about other forgotten species here. Create art to support this forgotten animal or raise awareness about them by sharing this post and using the #Boycottpalmoil #Boycott4Wildlife hashtags on social media. Also you can boycott palm oil in the supermarket.

Further Information

Giljov, A., Karenina, K., Hawkins, M. R., & Malashichev, Y. (2015). First record of limb preferences in monotremes (Zaglossus spp.). Australian Journal of Zoology, 63(5), Article ZO15043. https://doi.org/10.1071/ZO15043

Leary, T., Seri, L., Flannery, T., Wright, D., Hamilton, S., Helgen, K., Singadan, R., Menzies, J., Allison, A., James, R., Aplin, K., Salas, L. & Dickman, C. 2016. Zaglossus bartoni. The IUCN Red List of Threatened Species 2016: e.T136552A21964496. https://dx.doi.org/10.2305/IUCN.UK.2016-2.RLTS.T136552A21964496.en. Downloaded on 03 February 2021.

Mack, A. L. (2015). The Long-beaked Echidna: Can we save the earth’s oldest living mammal? Mongabay. Retrieved from https://news.mongabay.com/2015/10/the-long-beaked-echidna-can-we-save-the-earths-oldest-living-mammal/

Opiang, M. D. (2009). Home ranges, movement, and den use in long-beaked echidnas, Zaglossus bartoni, from Papua New Guinea. Journal of Mammalogy, 90(2), 340–346. https://doi.org/10.1644/08-MAMM-A-108.1

The Australia and Pacific Science Foundation. (2009). Reproductive ecology of the eastern long-beaked echidna, Zaglossus bartoni (APSF 09-1). APSF Project Report. Retrieved from http://www.apscience.org.au/apsf_09_1/

Wikipedia contributors. (2021). Eastern long-beaked echidna (Zaglossus bartoni). Wikipedia. Retrieved from https://en.wikipedia.org/wiki/Eastern_long-beaked_echidna

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