In News:

After an absence of more than six decades from Gujarat's Gir forests, the Indian Grey Hornbill has successfully re-established its population through a landmark reintroduction programme undertaken by the Gujarat Forest Department.

About the Indian Grey Hornbill

• The Indian Grey Hornbill (Ocycerosbirostris) is a medium-sized arboreal bird belonging to the family Bucerotidae. It is one of the most widespread hornbill species of the Indian subcontinent, known for its distinctive calls, large curved bill and unique nesting behaviour.
• Unlike many hornbill species that inhabit dense forests, the Indian Grey Hornbill is highly adaptable and thrives in open deciduous forests, thorn scrublands, riparian forests, agricultural landscapes and even urban parks containing mature fruit-bearing trees.
• It is endemic to the Indian subcontinent and is distributed across India, Pakistan, Nepal and Bangladesh.
• According to the IUCN Red List, the species is classified as Least Concern (LC).

Key Features

The Indian Grey Hornbill measures about 24 inches in length and has grey-brown plumage, a long white-tipped tail, and a large curved bill topped by a prominent casque. The casque is generally smaller and more pointed in females.

One of its most remarkable adaptations is its mud-sealing nesting behaviour. During the breeding season, the female seals herself inside a tree cavity using mud, fruit pulp and droppings, leaving only a narrow slit through which the male supplies food until the chicks are ready to emerge.

The species is monogamous, usually found in pairs or small family groups, and is recognised by its loud, harsh calls and characteristic flight pattern of alternating wing beats and glides.

Ecological Importance

The Indian Grey Hornbill plays a significant ecological role as an important seed disperser. By consuming fruits and dispersing seeds over long distances, it contributes to forest regeneration and enhances plant diversity.

It also serves as a natural pest controller, feeding on insects, lizards, scorpions and other small animals, thereby helping maintain ecological balance in forests and nearby agricultural ecosystems.

In News:

The Tamil Nadu State Department of Archaeology (TNSDA) has sent 23 charcoal samples from seven archaeological excavation sites to the Beta Analytic Laboratory in the United States for Accelerator Mass Spectrometry (AMS) dating, aiming to establish an accurate chronology of the cultural deposits unearthed during the 2024–25 excavation season.

Key Discoveries:

• Keeladi: Over 500 antiquities, 100 inscribed potsherds, including red-slipped ware with fish motifs.
• Porpanaikkottai: From 11 trenches, 1,792 antiquities such as pottery, glass beads, and bangles were found.
• Tirumalapuram: A stone slab chamber with urn burials—a first in Tamil Nadu’s megalithic excavation record.

What is AMS Dating?

• A high-precision radiocarbon dating technique that measures the Carbon-14 (C-14) content in archaeological samples.
• Unlike conventional radiometric methods, AMS counts individual atoms of C-14, not their radioactive decay.

How It Works:

• Sample Preparation: Organic samples like charcoal are chemically treated and converted to graphite.
• Ion Generation: A cesium beam bombards the graphite, generating negatively charged carbon ions.
• Acceleration: Ions are propelled by a tandem electrostatic accelerator to high kinetic energies.
• Stripping & Detection:
  • Ions pass through a stripping chamber to become positively charged.
  • Magnetic fields separate C-12, C-13, and C-14 isotopes based on mass.
  • C-14 atoms are counted to calculate the sample’s age.

Advantages of AMS Dating:

Applications of AMS:

• Archaeology: Dating of charcoal, wood, bones, pottery layers.
• Climate Science: Carbon mapping in marine and sediment systems.
• Geology/Oceanography: Sediment and core dating.
• Biomedical Research: Drug microdosing, tracing labeled compounds.

In News:

Italian luxury fashion house Prada, after public criticism, has acknowledged that its Men’s Spring/Summer 2026 collection sandals were inspired by India’s traditional handcrafted footwear — the Kolhapuri chappals, a product with Geographical Indication (GI) status.

About Kolhapuri Chappals

Origin:

• Named after Kolhapur city in Maharashtra, India
• Handcrafted tradition dates back to the 13th century

Design & Craftsmanship:

• Made from 100% leather (cow, buffalo, or goat)
• Vegetable-tanned using natural dyes – non-toxic and eco-friendly
• Typicallyopen-toed with a T-strap design
• Traditionally in tan and brown shades with oil, natural, or polish finishes
• Time-intensive craftsmanship – can take up to six weeks per pair

Cultural & Economic Value:

• Recognised under the Geographical Indications (GI) Act of India
• Symbol of sustainable fashion, durability, and local artisanal skill
• Leather molds to feet over time, ensuring custom comfort and longevity

The Controversy: Cultural Appropriation vs Cultural Inspiration

• Criticism emerged after Prada launched sandals resembling Kolhapuris without credit
• Public and media backlash led to acknowledgement of Indian inspiration
• Highlights the importance of:
  • Ethical recognition of traditional knowledge and cultural heritage
  • Protection of GI-tagged products from unauthorized imitation
  • Global awareness of India’s artisanal heritage