Category Archives: Maternal behavior

The solenodon- just another weird, wonderful, venomous mammal!

Solenodon paradoxus

While totally sounding like a sci-fi planet, Solenodons are actually just insectivores. In the family Solenodontidae, there is only one genus-Solenodon and just two species. Yes, solenodons come in just two flavors the Hispaniolan (Solenodon paradoxus) and the Cuban (Solenodon cubanus). These shrew-like looking creatures have a venomous bite that emanates from a groove in their second incisors. Solenodons are reported to eat plants, insects, small invertebrates, but also reptile, amphibians, and rodents. They kill prey larger than themselves most likely after inflicting a fatal bite. The toxin blarina produces a peptide called bradykinin and this bite then leads to paralysis and convulsions.

These amazing creatures are usually solitary and are only thought to come together for mating. Reproduction is slow and females have only 1-2 litters per year each time only giving birth to a few offspring. This weirdo mammal just gets weirder as her elongated teats are positioned near her groin. Her maternal care knows no bounds as she drags along her one or two young on her rear.

Check out the video below to see a solenodon in action:

Both species of Solenodons are considered endangered according the the IUCN Redlist. The Hispaniolan solenodon faces extinction primarily because of habitat destruction, while the Cuban solenodon is endangered mostly as a result of introduced predators including feral cats and dogs.

Read more about the Cuban Solenodon here at the EDGE site

Read more about the Hispaniolan Solenodon here at the EDGE site

If you are interested in the conservation status of the Hispaniolan Solenodon check out this website http://www.thelastsurvivors.org/ where researchers raise awareness and update the research progress.

Great White Pelican Moms get creative!

Mothers often take drastic measures to care for their young and the Great White Pelican is no exception. Check out the video below from the BBC “Life” series.

 

Brood parasitism: cuckoo cuckoo

Brood parasites in general hijack parental care. They drop off their kids in a strange nursery and fool the stranger into thinking it is their kid. This occurs in birds, fish and insects.

Here is an example from the BBC’s “Natural World” with a special appearance by behavioral ecologist, Nick Davies.

The video below comes from the National Geographic channel.

Here is a link to find out more about cuckoo bees http://www.cirrusimage.com/bees_cuckoo_Nomada.htm

Amphibian maternal care: Caecilian babies

There are three orders within the class Amphibia; Anura (frogs and toads), Caudata (salamanders) and Gymnophiona (caecilians). Caecilians are the least well-known group even though there are 184 known species with a widespread distribution in Africa, Asia, South and Central America. They have the appearance of worm-like snakes and can be small like worms or up to 1.5 meters. Caecilians can be fossorial or aquatic and below there is a video of each example.

This video is from the “Life in Cold Blood” BBC series and one will appreciate the dramatic music during the babies feeding.

The video below is an aquatic caecilian birth from the TN aquarium.

Amazing amphibian Monday!

ARKive video - Suriname toad in habitat, toadlets emerge from adults back

Surinam toad